None Nikele Sulfate ni iki?

Nickel sulfate ni ikintu kitagira ubuzima gifise ubuhinga bwa shimi NiSO4·6H2O, kigaragara nk'ikintu gikomeye c'ubururu-icatsi kibisi gishobora gusenyuka cane mu mazi. Ico gice gikora nk’inkomoko nyamukuru y’iyon za nickel mu gukora amashanyarazi kandi carabaye ikintu gihambaye cane nk’ikintu c’imbere mu guhingura amabateri ya litiyumu-ion, cane cane ku modoka zikoresha amashanyarazi.

Nickel sulfate iriho mu buryo bwinshi bufise amazi, imwe yose ikaba ifise ibiranga bitandukanye. Igihambaye cane mu vy’ubudandaji ni hexahydrate y’amazi yitwa nickel sulfate, ikaba irimwo amazi atandatu afatanye n’igice kimwekimwe cose c’amazi yitwa nickel sulfate.

Ivyo bihimba vy’umubiri bihinduka bivanye n’urugero rw’amazi birimwo. Nickel sulfate idafise amazi igaragara nk'ikintu gikomeye c'umuhondo gifise uburemere bwa 3.68 g/cm3 kandi kibora ku bushuhe bwa degre 848 . Igishushanyo c'amazi atandatu kigaragara nk'amabuye y'ubururu canke amabuye y'icatsi kibisi, bivanye n'ubushuhe-amabuye y'ubururu agaragara hagati ya degre 31.5 na degre 53.3, mu gihe amabuye y'icatsi kibisi agaragara hejuru ya degre 53.3.

Amazi ashobora gusenyuka ahagaze hafi 293 g/L ku 0℃, bikaba bituma nickel sulfate ishobora gusenyuka bidasanzwe. Ukwo gusenyuka gukomeye kuragaragaza ko ari ngirakamaro mu gukoreshwa kwavyo mu gusenyuka kw’amashanyarazi no mu guhingura ibintu vy’imbere y’amabateri. Ico gihimba kiguma kidashobora gusenyuka mu nzoga no mu mazi, ivyo bikaba bifasha mu bikorwa vyo gusukura.

Iyo ivuye mu mazi, nickel sulfate igira umunyuro w’aside ufise pH iri hafi 4,5. Uburemere bw’amamolekule bwandikwa ku 154,75 g/mol ku buryo butagira amazi, mu gihe hexahydrate ipima 262,85 g/mol. Ico gihimba kigaragaza ubushobozi bw’ubuhinga bwa paramagnétique kubera ama elegitoroni atagira amabara ari muri ion ya nickel.

Ubushuhe buragira ico bukoze cane ku bijanye n’ingene umubiri ugira amazi. Gushusha nickel sulfate y’amazi ku bushuhe bwa degre 103 bituma amazi atakaza burundu. Iyo umuntu asusurutse cane gushika ku rugero rwa 848, iyo sulfate idafise amazi irabora ikaba oxide de nickel na trioxide de sulfure. Ivyo bimenyetso vy’ubushuhe birahambaye ku bikorwa vy’uguhingura bisaba kugenzura neza ubushuhe.

Nickel Sulfate

Uguhingura nickel sulfate bikurikira inzira nyinshi zashinzwe, uburyo butoranywa bushingiye ku bikoresho biriho n’ingero z’ubusuku bwifuzwa.

Uburyo bugororotse kuruta ubundi bwose ni ugusesa ivyuma vy’umuringa, ivyuma vy’umuringa canke ivyuma vy’umuringa mu aside sulfurique. Ku bijanye n’umuyagankuba, iyo nzira igenda: NiO + H2SO4 → NiSO4 + H2O. Ivyo bikoreshwa canecane aside sulfurique ishushe kugira ngo yihutishe ibipimo vy’ugusenyuka. Ivyuma vy’ifu vy’i nickel canke nickel oxide yirabura birakora neza cane kubera uburebure bw’uburebure bw’ivu.

Inganda-urugero rw'uguhingura zikoresha uburyo bw'ibikoresho vy'ubuhinga bwa none. Ivyo bikoresho vy’ivyuma vyitwa nickel vyinjira muri iyo reactor hamwe n’umunyu w’aside sulfurique. Oxygène iraza kugira ngo ikirere kigume gitera oxygène. Mu gihe cose c’ivyo bikorwa, abakoresha baraguma bafise ubushuhe n’umukazo bihoraho kugira ngo bashobore guhindura neza ibintu be n’uburyo bw’ibintu.

Ivyo bituma habaho umuti w’ivyuma vyitwa nickel sulfate vyinjira mu gikoresho gipfutse. Gushushanya no gutera umukazo bituma haba ubururu bw’ikibiriti c’umuringa w’umuringa witwa hexahydrate. Gukuraho ubuhumane birimwo gutera amabuye y’agaciro n’umunyu w’ivyuma vyitwa barium carbonate, uwo muti ukaba utuma ibintu bihumanye bitera mu gihe usiga nickel sulfate mu munyuro.

Haciye hasohoka uburyo bushasha bwo gukura amazi mu kirere ata aside-, bugaragaza ubushobozi budasanzwe. Ubushakashatsi bwasohowe mu kinyamakuru Nature Communications mu 2025 bwerekana ko ubu buryo bushika ku 97,4% vy’ugukura nickel na 98,8% vy’ugukura cobalt mu bikoresho bikomeye vy’ivyuma vy’umuyagankuba mu gihe bugabanya CO2 n’ibice 59,5%. Ubwo buryo bukoresha ubuhinga bwo gutegura ibifungurwa, bikaba bituma habaho ugusesagura neza ata n’imwe ikeneye umukazo mwinshi canke ubushuhe bwinshi.

Ivyuma bikoresha aside y’umuvuduko munini (HPAL) bigereranya ubundi buryo buhambaye bwo guhingura, cane cane mu gutunganya amabuye y’agaciro yitwa lateritic nickel. Indoneziya yacitse ikibanza c’ibikorwa vya HPAL, hari ibikorwa vyinshi biriko vyubakwa canke biherutse gutangura gukora. Ivyo bibanza bigamije gukora amabateri-grade nickel sulfate ataco akora bivuye mu mabuye y’agaciro, bica mu gukora ivyuma vy’amabuye y’agaciro biri hagati.

Ubushobozi bwo gukora bwaragutse cane kugira ngo bushike ku bisabwa vya bateri. Ivyo bikoresho vy’ubuhinga bwa nickel sulfate kw’isi yose vyarengeye amatoni miliyoni 1 mu myaka iheze, Ubushinwa bukaba ari bwo butanga ibice birenga 70% vy’ivyo bikoresho kw’isi yose. Ukwo kwibanda kw’ubushobozi bwo gukora muri Aziya kwerekana ko ako karere ari ko gahambaye mu gukora amabateri.

Inganda zikora amabateri zisaba nickel sulfate isukuye cane, ivyo bikaba birenze kure n’iyo ivyo bisabwa mu gukoresha ubuhinga bwa kera bwo gutera amabateri. Ivyerekeye urugero rwa bateri-bisaba ko haba 22% vy’ivyuma vy’umuyagankuba n’ibice 100 ku miliyaridi (ppb) vy’ibintu vy’umuyagankuba.

Ibisabwa vyo gusukura bishingiye ku gukuraho ubuhumane bubangamira imikorere ya bateri. Magnesium iratanga ingorane yihariye kubera ko umurongo wayo w’iyon n’umuriro wayo bihuye cane n’ivyo bita nickel, ivyo bikaba bituma habaho ugusubirirana kw’ibintu bimwe bimwe mu nzira y’amabuye y’agaciro. Ivyo bisubirira bituma uburyo bw’ibikoresho vya katode buhungabana, bikagabanya ubushobozi bwa bateri n’ubuzima bw’ingendo.

Ubushakashatsi bwasohowe muri Nzero 2023 bwasuzumye ukuntu magnesium ikurwamwo mu gihe co gusukura hexahydrate ya nickel sulfate. Ico cigwa casanze uburyo bwo gusubiramwo ibintu bugabanya neza ubuhumane bwa magnesium ku rugero rwemewe rwo gukoresha amabateri. Isesengurwa ry’imishwarara ya X-remeje ko amakirisitayo aguma afise igice ca -NiSO4·6H2O, ari co kintu gikundwa cane mu gukora amabateri.

Ubuhinga bwo guhindura amabuye y’agaciro burafise uruhara runini mu gushika ku busuku bw’urugero rwa bateri-. Ivyo bikoresho bimenyerewe bikoreshwa mu guhindura umwuka bivamwo nickel sulfate, ariko ubuhinga bwo guhindura ibintu bikoresheje umwuka buratanga inyungu mu gutunganya amabuye y’agaciro yitwa lateritic. Kwongerako ibintu bigabanya ubushobozi bwo gusenyuka, bikaba bituma habaho ugusenyuka kw’amabuye y’agaciro ku bushuhe buke kandi bikaba bishobora gutuma habaho ibintu vy’ubusuku bwinshi.

Ivy’ugucungera imiterere y’ibinyabuzima birahambaye kubera ko ubunini bw’ibinyabuzima n’imiterere yavyo bigira ico bikoze ku gukora ibikoresho vya katode bikurikira. Amasahani manini canke amabuye magufi-amabuye y’agaciro y’ibara ry’agahama ni -hexahydrate y’isulfate ya nickel. Kubungabunga imiterere y’amabuye y’agaciro idahinduka bituma habaho ibikorwa bishobora gusubirwamwo mu guhingura ibintu bibanza.

Ubuhinga bwo gukura ibintu biva mu mazi bwarateye imbere cane. Uburyo bwo gukura ivyuma bifatanye bushobora gutuma nickel na cobalt bitandukana icarimwe ataco bisaba intambwe zikurikira zo guhindura ivyuma canke gutsinda ivyuma. Ubwo buryo buratuma ibintu vyoroha kandi bikagabanya amahera bikoreshwa mu gihe bigumya ingingo mfatirwako z’ubusuku.

Inganda zikora amabateri zitandukanya ivyicaro bitandukanye vy’ivyuma vyitwa nickel sulfate bivanye n’ingene bikoreshwa. Nickel sulfate y’agaciro kanini -y’ubusuku itegeka igiciro c’agaciro kubera ibisabwa bikomeye vy’uburyo. Kuva muri Ndamukiza 2025, ivyuma vy’agaciro vy’amabateri-bifise 22% vy’ivyuma vy’agaciro bigurishwa ku ma Yuan 27.100/mt ($3.759/mt) mu Bushinwa.

Nickel Sulfate

Nickel sulfate yacitse ikintu gihambaye cane mu guhingura amabateri y’ubuhinga bwa none, cane cane mu gukoresha imodoka zikoresha umuyagankuba. Ico gitera gikora nk’inkomoko y’intango y’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma.

Bateri z’umuyagankuba (Li-NMC) ni zo zigereranya ubuhinga buhambaye ku bikoresho vy’umuyagankuba. Izo bateri zitanga ubushobozi bwihariye bwa 180-200 mAh/g ugereranyije na 150 mAh/g zivuye kuri litiyumu cobalt oxide, ivyo bikaba bisigura igituma NMC ari yo ihambaye kw'isoko naho yaje gucuruzwa mu 2004.

Abahinga mu vy’amabateri bamenyesha ibigize NMC hakoreshejwe imigereranyo ya nickel-manganese-cobalt. NCM811 irimwo 80% vy’ivyuma vyitwa nickel, 10% vy’ivyuma vyitwa manganese, na 10% vy’ivyuma vyitwa cobalt, ivyo bikaba bituma ingufu zirushiriza kuba nyinshi mu gihe bigabanya ivyuma vyitwa cobalt bizimvye. Ukwo guhinduka kwerekeza ku bikoresho vy’ubuhinga bwa nickel-bituma ivyipfuzo vy’ubuhinga bwa nickel sulfate vyiyongera.

Ivyo bitangura no kuvanga umunyu wa nickel sulfate n’umunyu wa cobalt na manganese mu rugero rubereye. Ico gisubizo c’amazi gica mu coprecipitation kugira ngo gikore igikoresho c’ivyuma kivanze c’ivyuma bita hydroxide. Inyuma yo kuyungurura, gukaraba no kwumisha, iyo ntungamubiri iravangwa n’ikintu citwa litiyumu maze igaca ivunwa ku bushuhe bwinshi kugira ngo ibone ifu ya nyuma y’ibara ry’agahama.

Nickel-ubutunzi bwa katode zitanga inyungu zigaragara. Ivyo bita nickel vyinshi birongereza uburemere bw’inguvu, bikaba bituma amabateri ashobora kubika inguvu nyinshi ku buremere bw’ikintu. Ivyo bihindura ata guca ku ruhande urugendo rwo gutwara imodoka za EVs, ikintu gihambaye cane ku kwemerwa n’abaguzi. Bateri isanzwe ya EV irimwo ibiro 40-60 vy’ivyuma vy’agaciro, n’ibindi bikoresho vy’agaciro kanini birimwo mbere n’ibindi.

Litiyumu nikele kobalti aluminiyumu oxide (NCA) igereranya ubundi buhinga bufise nikele-ubutunzi. Ikoreshwa n’abahinguzi bamwebamwe b’ama EV, amabateri ya NCA arimwo hafi 80% vy’ivyuma vyitwa nickel. Bateri za Tesla za kera zari zishingiye cane ku buhinga bwa NCA imbere y’uko zihindurwa zija mu zindi buhinga bwa shimi ku mirongo itandukanye y’ibinyabiziga.

Uruganda rw’amabateri rwakoresheje amatoni agera ku 384.000 y’amabuye y’agaciro mu mwaka w’2024, ivyo bikaba bigereranya 11,5% vy’amabuye y’agaciro akoreshwa kw’isi yose. Uwo mubare uzoduga ugere kuri toni 543.000 mu 2025, ushike ku bice 15,2% vy’ivyo vyose bisabwa. Mu mwaka w’2030, umugambi w’amabateri uzokoresha amatoni 870.000, ukazoduga ukagera kuri toni miliyoni 1,5 mu mwaka w’2040.

Uruhara rwa Nickel rurarenga ibikoresho vya katode. Ivyo icuma gifasha mu gukora neza kwa bateri birimwo ugushikama kw’ubushuhe, ugushikama kw’imiterere mu gihe c’ingendo z’ugushaja-ugusohoka, no kugabanya ukuzimangana kw’umuriro uko igihe kigenda kirarenga. Ivyo bituma nickel iba ngirakamaro ku mabateri afise ubuzima buramba n’ugutanga ubushobozi bwinshi.

Abahinguzi b’amabateri bararushiriza gusobanura nickel sulfate kuruta ibindi bihimba vy’umubiri. Ugusenyuka kw’iyi sulfate n’ubusuku bwayo bituma iba nziza cane mu guhingura ibintu bibanza gukoreshwa mu buryo bugenzuwe. Ibindi bikoresho vyo gukoresha nickel nka nickel chloride canke nickel carbonate bibona ko bikoreshwa bike mu guhingura amabateri kubera ibibazo vyo gutunganya canke ivy’ubuhumane.

Isoko ry’ivyuma vyitwa nickel sulfate ryarateye imbere cane kubera ihinduka ry’ibinyabiziga bikoresha umuyagankuba. Amashirahamwe menshi y’ubushakashatsi arakurikirana ukwo kwaguka, imibare ikaba itandukanye bivanye n’uburyo bukoreshwa ariko yose yerekana ko hariho iterambere rikomeye.

Ivyiyumviro vy’ubunini bw’isoko mu mwaka w’2024 biva ku madolari 4,19 miliyaridi gushika ku madolari 9,98 miliyaridi bivanye n’uburebure n’aho biherereye. Naho hariho itandukaniro mu mibare, abahinga mu vy’ubuhinga bwa none baguma bavuga ko iterambere ry’umwaka rizoba hagati ya 10% na 16% gushika mu myaka ya 2030.

Icegeranyo kimwe gikomeye cagereranyije isoko ry’isi yose ry’amabuye y’agaciro yitwa nickel sulfate ku madolari 4.82 miliyaridi mu 2024, rikaba rivuga ko rizokwiyongera gushika ku madolari 21.35 miliyaridi mu 2034 ku 16.2% CAGR. Igice c’ikoreshwa ry’amabateri ni co gituma haba iyo nkura, kikaba gifise hafi 60% vy’ikoreshwa ry’amabuye y’agaciro yitwa nickel sulfate kw’isi yose.

Uburyo bwo guhingura ibintu mu karere burakunda cane Aziya. Ubushinwa buraganza n’ibice birenga 70% vy’umusaruro wa nickel sulfate kw’isi yose, bukoresheje ubuhinga bwabwo bwo gukora amabateri n’ukwagura ubushobozi bwabwo. Ubuyapani, Koreya y’Epfo na Tayiwani biratanga ibindi bikoresho, naho nyene ari bito cane kuruta Ubushinwa.

Indoneziya iraseruka nk’umukinyi w’agaciro biciye mu guteza imbere HPAL. Igihugu gifise ububiko bwinshi bw’amabuye y’agaciro yitwa lateritic nickel kandi carakwegereye amamiliyaridi y’amafaranga y’Abashinwa mu gucukura amabuye y’agaciro-ugutunganya-ibikorwa vyo guhingura amabuye y’agaciro yitwa sulfate. Ivyo bigo bifise intumbero yo guhingura amabuye y’agaciro yitwa nickel sulfate, ivyo bikaba bituma Indoneziya iba igihugu gikomeye gitanga amabuye y’agaciro.

Amerika ya ruguru n’Uburayi birasigaye inyuma mu guhingura nickel sulfate naho ari vyo bikoresha cane. Isoko rya Amerika ryari rifise amadolari agera ku miliyaridi 4 mu 2024, ryizigiye cane ibicuruzwa biva hanze. Ivyo Uburayi bukora biracari bike, naho imigambi myinshi igamije gushinga ubushobozi bwo mu gihugu bwo gufasha mu guhingura amabateri mu karere.

Ivyiyumviro vy'ibikorwa vyerekana ko uguhingura amabateri ari co gice gikura vuba cane-. Ivyo gukoresha umuyagankuba, ni vyo bikoreshwa cane cane mu gukora nickel sulfate, birabandanya gutwara ibintu vyinshi ariko bikagenda birakura buhoro buhoro. Ibikorwa vy’inganda z’imiti biratuma habaho ugushaka gukomeye kw’ibintu bituma ibintu bigenda neza, ibintu bitera ibara n’ibindi bintu bidasanzwe.

Igice ca bateri-grade cane cane cari gifise agaciro k’amadolari 1.2 miliyaridi mu 2024, n’ibiharuro vyerekana ukwaguka kwihuta uko uguhingura EV kwihuta. Ico gice c’imbere gitegeka ibiciro vyinshi kubera ibisabwa bikomeye vy’ubusuku n’ugukora bigoranye.

Ugutanga-ugusaba kwerekana uburyo bushimishije. Naho ivyifuzo vyiyongera cane, isoko rya nickel sulfate rihanganye n’ibibazo vy’ugutanga birenze urugero kubera ukwaguka kw’ubushobozi. Ubu ubushobozi bwo gukora amabateri kw’isi yose bugera ku masaha 3,1 terawatt- burarengeye ivyo umuntu asaba incuro zirenga 2,5, ivyo bikaba bituma ibiciro bigabanuka.

Ishoramari rirabandanya naho hariho ivy’ugutanga birenze urugero. Muri Mukakaro 2025, Norilsk Nickel yatangaje ko izoshora amahera menshi kugira ngo yagure ubuhinga bwo gukora ivyuma vy’agaciro kanini. Vale SA yaronse amasezerano y’igihe kirekire-yo gutanga n’ishirahamwe rikomeye ry’amabateri ryo muri Aziya muri Ntwarante 2025. Ivyo bigaragaza ko hariho ukwizigira mu kwiyongera kw’abasaba mu kiringo kirekire naho isoko ry’igihe kirekire ryoba ryoroshe.

Ingamba z’ubuzima buramba ziriko zirahindura ubuhinga bwo guhingura. BHP Group yashize ahabona ubuhinga bushasha bwo gutunganya nickel buramba muri Rusama 2025, bugamije kugabanya ingaruka mbi ku bidukikije. Uko abahinguzi b’amabateri bashikirwa n’imikazo myinshi yo kwerekana ko uruhererekane rw’ugutanga ibikoresho rushobora kugumaho, abahinguzi bashiramwo ubuhinga busukuye boshobora kuronka inyungu mu bijanye n’uguhiganwa.

Ibiciro vya Nickel sulfate n’ibiciro vya bateri ya litiyumu bigumya ubucuti bukomeye bushingiye ku nzira z’ugutanga, ingene ibikoresho bigenda, n’uguhiganwa kw’isoko.

Ibiciro vy’amabateri ya litiyumu -ion vyagabanutse 20% mu 2024 bishika ku madolari 115 ku kilowatt-isaha, bikaba ari vyo vyagabanutse cane mu mwaka kuva mu 2017. amabateri y’ivyuma vy’i litiyumu (LFP).

Amapaki y’ibinyabiziga bikoresha umuyagankuba akoresheje amabateri yajabutse munsi y’amadolari 100/kWh ku ncuro ya mbere mu 2024, ashika ku madolari 97/kWh. Iyi ntambwe igereranya iterambere rikomeye mu bijanye n’uguhuza ibiciro hagati y’ibinyabiziga vy’amashanyarazi n’ibinyabiziga bisanzwe. Ubushinwa ni bwo burongoye ibiciro bito cane ku madolari 94/kWh, mu gihe amapaki yo muri Amerika n’ayo mu Buraya agura 31% na 48%.

Ihuriro n'isulfate ya nickel riboneka mu buhinga bwa shimi bw'amabateri afise nickel-. Bateri za NCM na NCA zishingiye cane ku birimwo nickel, nickel sulfate ikaba ari yo ikoreshwa cane. Iyo ibiciro vya nickel sulfate vyiyongereye, ibiciro vy’ibikoresho vya cathode biraduga, ivyo bikaba bitera umukazo wo kuduga ku biciro vy’amabateri.

Ariko rero, inzira y’ibiciro yo mu 2024 yerekana ko ata sano riri hagati y’ibiciro vy’ibikoresho vya mbere n’ibiciro vy’amabateri. Ibiciro vya bateri vyagabanutse cane kurusha ibiciro vy'ivyuma vya bateri, vyerekana ko abahinguzi ba bateri bafise amafaranga menshi. Abahinguzi batoyi barahura n'imikazo yihariye uko bahiganwa kugira ngo baronke umugabane w'isoko biciye mu gushinga ibiciro bikomeye.

Guhinduka kw’igiciro c’ibikoresho vya mbere biragira ico bikoze ku migambi. Ibiciro vya lithium carbonate vyagabanutse biva ku madolari nka 70.000 kuri toni mu 2022 bishika munsi y’amadolari 15.000 mu 2024. Ibiciro vya cobalt vyagabanutse biva ku madolari nka 70.000 bishika ku madolari 30.000 kuri toni muri ico kiringo nyene. Ivyo bigabanuka bikomeye vyarakuyeho ingaruka zimwe zimwe zivuye ku guhinduka kw’igiciro ca nickel.

Igiciro ca nickel sulfate cerekanye ko kidahinduka mu mwaka wose wa 2024. Ibiciro vya nickel sulfate vy’Abashinwa vyari hagati y’ama Yuan 25.200-27.700 kuri toni mu kiringo c’igice ca mbere c’umwaka w’2024, bikaba vyishura ku guhinduka kw’ivyo abantu basaba no ku guhinduka kw’ibiciro vy’ibikoresho. Isoko ryagumye rigoyagoya kubera ubushobozi burenze urugero bwo gukora amabateri no guhindura ivyo abantu bakunda mu vy’ubuhinga bwa shimi.

Guhindukira ku bijanye n’ama cathode y’ubutunzi bwa nickel-bituma habaho ingorane zitandukanye ku biciro vy’amabateri. Ivyimburwa vyinshi vy’ivyuma bitera ingufu nyinshi, bikaba bituma abahinguzi bakoresha utugingo ngengabuzima dukeyi kugira ngo bakore neza-bishobora kugabanya ibiciro vy’urugero rw’amapaki-. Ico gihe nyene, kwongerekana kw’ikoreshwa rya nickel kuri bateri bituma habaho amahera menshi y’ibikoresho vya mbere kuri bateri.

Bateri za LFP, zitagira nickel, zigura hafi 20% ziri munsi y’amabateri ya NCM. Ivyuma vya LFP vyari munsi gato y’amadolari 60/kWh mu 2024 ugereranyije n’ibiciro vyinshi vy’ibikoresho vy’ubuhinga bwa nickel-. Ivyo vyatumye LFP yemerwa cane cane mu Bushinwa aho ziganza ibice bimwe bimwe vy’ibinyabiziga.

Ivyiyumviro vy’uguhiganwa hagati y’ubuhinga bushingiye kuri nickel-n’ubuhinga butagira nickel-bigira ico bikoze ku gusaba nickel sulfate. Igihe ibiciro vya nickel vyiyongereye, abahinguzi b’imodoka barazirikana kwongerera ikoreshwa rya LFP, bikagabanya ikoreshwa rya nickel sulfate. Ku rundi ruhande, iyo ibiciro vya nickel biringaniye, inyungu z’ibikorwa vy’amabateri afise nickel-zica zikwegera cane ugereranije n’ibiciro vy’amahera.

Mu kwitega umwaka w’2025, abahinga mu vy’inganda bariteze ko ibiciro vy’amabateri bizogabanuka n’ibindi bice vy’amadolari 3/kWh ku rugero rwa mwayeni. Ukwo kugabanya gutoyi ugereranyije n’ugugabanuka kw’ibice 20 kw’ijana mu mwaka w’2024, kwerekana ko ibiciro vy’ibikoresho vya mbere bizoguma bihagaze neza no gutuma ubuhinga bwo gukora ibintu bugenda neza aho gukomeza kugabanya ibiciro vy’ibikoresho. Ibiciro vya Nickel sulfate bishobora gukomera uko ibiciro vyo gukora bigenda biragabanuka kandi n’ugukura kw’abasaba bikabandanya.

Uguhinduka kw'ibiciro mu karere birahambaye ku bijanye n'uguhiganwa kw'isi yose mu guhingura amabateri. Igiciro c’Uburayi gifise 48% ku Bushinwa kigaragaza ibintu vyinshi harimwo n’ibiciro vyinshi vy’abakozi, amahinguriro mashasha afise igitigiri gito c’abakoresha, n’imirongo y’ibikoresho idakomeye. Uburyo bwa Nickel sulfate buboneka n’igiciro cavyo ni vyo bituma habaho izo ntandukaniro mu karere.

Abahinguzi bamwebamwe b’imiduga baragiranye amasezerano y’ugutanga nickel sulfate ataco akora n’abayihingura, barondera ko ibiciro biguma bimeze neza be n’uko bashobora gutanga ivyuma bita nickel sulfate. Aya masezerano, akenshi akaba ari ay’imyaka myinshi, akuraho umubare umwe mu masoko y’ibintu bimwebimwe kandi agatuma abahinguzi babona ivyifuzo kugira ngo bashobore gushingira intahe ishoramari ry’ubushobozi.

Isano hagati y’ugutanga nickel sulfate n’inzira z’igiciro c’amabateri ya litiyumu birashoboka ko rizokomera uko ubuhinga bw’amabateri buzobandanya gutera imbere buja ku birimwo nickel nyinshi. Abahinguzi bakora NCM9 (90% nickel) mbere n’ibindi bihimba vy’umubiri vy’agaciro kanini bazokwongerera ubushobozi bwo gutahura ukuntu nickel sulfate iboneka be n’igiciro cayo.

Nickel Sulfate

Naho uguhingura amabateri ari kwo kuganza iterambere, nickel sulfate iguma ikoreshwa cane mu bikorwa vya kera vy’inganda.

Ivyuma bikoreshwa n’umuyagankuba bigereranya igikorwa nyamukuru c’intango c’ivyuma vyitwa nickel sulfate. Ico gihimba gitanga ions za nickel zo gushiramwo ibice vy’ivyuma vy’agaciro bitobito ku vyuma biciye mu nzira z’amashanyarazi. Ivyo bikoresho vy’ivyuma bita nickel biratuma ivyuma vy’ishimikiro bishobora guhangana n’ugusenyuka, bikagaragara neza be n’uko bishobora kwambara.

Ico kinogo co gupfuka ivyuma vy’ubwoko bwa Watts-, kikaba carakoreshejwe hafi imyaka ijana, gifatanya ivyuma vy’ivyuma (nk’amagarama 300/L), ivyuma vy’ivyuma (60 g/L), n’ivyuma vy’ivyuma (40 g/L). Ubushuhe bwo gukoresha buva kuri 40-70 degrees n’uburemere bw’amashanyarazi buva kuri 1-10 A/dm2. Iryo tegeko rituma habaho ibisigazwa vyizigirwa bifise ubushobozi bwiza bwo kubona.

Ivyo bikoresho bikoreshwa mu gushaza. Ivyuma vy'imodoka, ibikoresho vyo mu mazi, n'ibikoresho vy'ubuhinga bwa none vyungukira ku bwiza n'uburinzi bwo gusenyuka. Ariko rero, sulfate nickel itanga ibisigazwa vy’ibintu bitobito, bitari vyiza cane ugereranije n’ibindi bihimba nk’ivyo bita sulfamate nickel.

Inganda zikora imiti zikoresha nickel sulfate mu guhingura ibintu bitera umuriro. Ivyo bikoresho bishingiye kuri Nickel-bifasha mu gukora ibintu vyinshi harimwo n’uguhindura amazi, guhindura ivyuma, n’ugukora ivyuma. Nickel sulfate hexahydrate ikora nk’ikintu co gutangura gutegura ivyo bikoresho biciye mu gutera imvura no kugabanya.

Gutera ibara ry’impuzu no gucapura hakoreshwa umuti witwa nickel sulfate nk’ikintu gitera ibara, kigafasha gushiramwo irangi ku mpuzu. Naho iyo nzira yagabanutse kubera amategeko agenga ibidukikije abuza gukoresha ivyuma biremerera mu mpuzu, iracariho mu bikorwa bimwebimwe vyihariye.

Ibikorwa vyo muri laboratwari birimwo gusukura poroteyine hakoreshejwe ubuhinga bwa nickel-affinity chromatography. Inkingi zasubiwemwo n’imiti y’ivyuma vyitwa nickel sulfate zifatanya neza poroteyine zifise ikimenyetso ca histidine-, ubuhinga busanzwe mu bushakashatsi bw’ibinyabuzima n’ibinyabuzima. Iryo koreshwa ry’umwihariko rifata ibice bito cane ariko ritegeka igiciro c’agaciro.

Ivyuma vy’amabuye n’ivy’amabara bikoresha nickel sulfate mu gutera amabara. Ivyo bihimba vy’umubiri bita nickel bitanga amabara y’icatsi kibisi n’ubururu mu bikoresho vy’amabara n’ivy’ivyuma. Inganda zikora ibirahuri na zo nyene zikoresha nickel kugira ngo zishike ku mabara yihariye, naho nyene ubundi buryo bwo gukoresha cobalt bwaronse ugukundwa mu bikorwa bimwebimwe.

Ubuhinzi bubona ko nickel sulfate ikoreshwa bike nk’isoko y’ingaburo ntoyi ku butaka bufise nickel-buke. Nickel irafise uruhara mu guhindura azote y’ibimera, kandi iyo ibuze, birashobora gutuma ibiterwa bikura neza. Ariko rero, iyo nzira iguma ari ntoyi ugereranije n’ugukora ivyuma bikoreshwa n’umuyagankuba be n’ugukora amabateri.

Ivyuma biheza birenze gutera umuyagankuba birimwo no gutera ivyuma vyirabura ku zinc n’umuringa. Ivyo bikoresho vy’ivyuma bita nickel sulfate biratuma ivyo vyuma vy’ishimikiro bigira ivyuma vyirabura kandi bishaza. Iyi porogarama ikoresha ibikoresho vy’ubwubatsi, ibicurarangisho vy’umuziki, n’ivyuma vyo gushaza.

Nickel sulfate iratanga ingorane zikomeye ku buzima n’ibidukikije bisaba gufatwa neza no gucungirwa neza.

Ivyiyumviro vy’ubumara bigaragaza ko nickel sulfate ari ikintu kizwi ko gitera kanseri mu bantu bishingiye ku nyigisho z’indwara zigaragaza ko kanseri yo mu bihimba vy’impwemu ishobora kwiyongera mu bakozi bo mu bikorwa vyo gusukura amabuye y’agaciro yitwa sulfide. Ikigo mpuzamakungu kijejwe ubushakashatsi ku ndwara ya kanseri (IARC) carasuzumye cane ivyuma bita nickel, kigashira mu rutonde rw’ibintu bimwebimwe bishobora gutera kanseri ku bantu.

Ingaruka z’uguterwa n’ivyo bihimba birimwo indwara y’urukoba ikaze, urukoba rwo mu mutwe, n’ibimenyetso nk’ivy’umusonga-. Nickel sulfate ni yo yamenyekanye ko ari yo itera allergie nyinshi mu gupima ibipande mu myaka ya 2005-2006, ikaba itera 19% vy’abantu basuzumwe. Gukorana n’urukoba bitera allergie ku bantu bafise ububabare, rimwe na rimwe bikaba bigaragara cane.

Guhumeka inkungugu canke umwotsi w’ivyuma bita nickel sulfate bitera ububabare mu guhema kandi bishobora kwonona cane amahaha. Ingingo ngenderwako zo gushikirwa n’ibintu bikomeye mu kazi zigabanya ukwibanda ku kazi kugira ngo abakozi bakingirwe. Ivyo kwikingira harimwo n’ibikoresho vyo guhumeka, amaganzu, n’impuzu zo kwikingira bica biba ngombwa igihe umuntu ariko arakorana n’ico kibanza.

Ubumara bwo kunywa bugira ingaruka ku ngingo nyinshi. Amafyigo, umutsi w’insogi be n’imitsi y’ubwonko birashobora kwononekara iyo umuntu abibonye cane. Naho gufata ibintu mu mpanuka bidasanzwe mu bibanza vy’inganda, gushirako ikimenyetso kibereye no kubika neza birabuza ivyo bintu.

Ingaruka ku bidukikije zishingiye ku kwanduza amazi. Nickel sulfate ishobora gusenyuka cane mu mazi, bisigura ko iyo imenetse canke iyo ijugunywe nabi, bishobora guhumanya amazi bitagoranye. Ibinyabuzima vyo mu mazi vyerekana ko bishobora gushikirwa n’ibintu vyinshi vyitwa nickel, ivyo bikaba bigira ingaruka ku bifi, ku bikoko bitagira amagufa no ku binyabuzima bitobito.

Gusukura amazi mabi ava mu guhingura no gukoresha nickel sulfate bisaba uburyo bwihariye. Imvura y’imiti ikoresheje ibikoresho vy’amazi ihindura nickel iyunguruye ikaba hydroxides canke carbonates zidashobora gusenyuka, ivyo bikaba bituma ishobora gukurwaho biciye mu kuyungurura. Ubushobozi bwo kuvura butegerezwa kuba buhuye n’ingingo ngenderwako zo gusohoka kugira ngo ntihagire ingaruka mbi ku bidukikije.

Ukwanduzwa n’ubutaka biva ku bihimba vy’umubiri bita nickel birabandanya kubera ko ivyuma bigumye mu bihimba vy’ubutaka. Ibibanza vyanduye vyoshobora gusaba ko bisanurwa biciye mu kwoza ubutaka, mu guhagarika canke mu kwimba. Inganda zikoresha nickel sulfate zishira mu ngiro ingingo zo gukingira ubutaka n’amazi yo mu butaka.

Amategeko agenga ivy’ugutwara abantu n’ibintu avuga ko nickel sulfate ari ikintu giteye akaga gisaba gupfunyika neza, gushirwako amazina no gushirwako inyandiko. Ivyombo vyo gutwara ibintu bitegerezwa kubuza kurekurwa mu gihe c’ugufata n’ugutwara bisanzwe. Uburyo bwo gusubiza vyihutirwa buratorera umuti ibishobora guseseka canke impanuka mu gihe co gutwara ibintu.

Uburyo bwo guhingura ibintu buramba buriko buraseruka kugira ngo haboneke umuti w’ingorane zijanye n’ibidukikije. Uburyo bwo gukura amazi mu kirere butagira aside-twavuze imbere yerekana ko hariho iterambere rikomeye, bugabanura ivyuka bihumanya ikirere hafi 60% ugereranyije n’ivyo gukura amazi mu kirere mu buryo busanzwe. Ivyo bishasha bisubiza umukazo uriko uragwira ku bijanye n’ugutanga nickel isukuye.

Gusubira gukoresha amabateri bizogira uruhara runini mu gutanga nickel sulfate. Gusubirana nickel mu mpera-y'-ubuzima bw'amabateri bigabanya umukazo wo gucukura n'ingaruka zijanye n'ibidukikije. Amashirahamwe amwe amwe aramaze gukora nickel sulfate akoresheje ibikoresho vyasubiwemwo, iyo nzira ikaba yitezwe gukura cane uko amabateri ya EV azoshika ku mpera y’ubuzima bwayo mu myaka iri imbere.

Inzego z’amategeko zirabandanya gutera imbere. Itegeko ry’Ubumwe bw’Uburayi ryerekeye REACH risaba kwandika n’amakuru yerekeye umutekano w’ivyuma vyitwa nickel sulfate. Amategeko asa n’ayo yo mu bindi bihugu asaba ko umuntu amenyesha abantu ibijanye n’akaga, ko umuntu ashobora gushikirwa n’ingorane, kandi akagira ingingo zo kurinda ibidukikije.

Inganda y’ivyuma vyitwa nickel sulfate ihanganye n’imyaka cumi y’ihinduka uko ivyifuzo vy’amabateri bihindura amasoko y’isi yose n’imirongo y’ugutanga ibikoresho.

Ivyiyumviro vyerekana ko ivyo bisabwa bizobandanya gukura cane naho nyene ubu hariho ivyipfuzo birenze urugero. Ishirahamwe CRU Group ritegekanya ko igikoresho ca nickel gikoreshwa mu rwego rw’amabateri kizoshika kuri toni 870.000 mu mwaka w’2030, n’amatoni miliyoni 1,5 mu 2040, bikaba ari ica gatatu c’ivyo vyose bikenewe. Ukwo kwiyongera kuva ku kwemera EV no kwagura ububiko bw’inguvu zidahinduka.

Ugutera imbere kw’ubuhinga bwa shimi ku bijanye n’ibintu vyinshi vy’agaciro vyitwa nickel bituma habaho ugukoresha kwa bateri. Igikurikira-cathodes zigamije 90%+ y'ibirimwo nickel, zituma ingufu zirushiriza kuba nyinshi mu gihe zigabanya ikoreshwa rya cobalt. Ivyo bikoresho vy’ubuhinga bwa nickel-bisaba nickel sulfate nyinshi cane ku kilowatt{6}}isaha y’ubushobozi bwa bateri.

Uguhindura uruhererekane rw’ugutanga ibikoresho mu karere biriko birahindura ubuhinga bwo guhingura. Intwaro za Amerika y’Uburaruko n’iz’Uburayi zitera imbere uruhererekane rwo gutanga amabateri mu gihugu biciye mu nkunga n’ingingo ngenderwako z’ubudandaji. Ubu buryo bwa "friend-shoring" buraremesha uguhingura nickel sulfate hafi y'uguhingura amabateri, bishobora kugabanya ubukuru bw'Aziya.

Iterambere ry’ubuhinga rirabandanya mu bijanye n’uguhingura ibintu. Inzira nshasha zo gukora ivyuma zigamije guca mu ntambwe zisanzwe zo gukura umunyu w’ivyuma, zituma habaho ubuzima buramba kandi zigatuma habaho ugukoresha amahera make. Gushiramwo uguhingura nickel sulfate n’uguhingura ibintu bibanza bishobora gukuraho intambwe zo guhindura amabuye y’agaciro, bikaba bituma uruhererekane rw’ugutanga ibikoresho rugenda neza.

Iterambere ry’ibikorwa remezo vyo gusubira gukoresha ibintu bishasha rizotuma buhoro buhoro habaho ugutanga nickel sulfate ya kabiri. Uko uruvyaro rwa mbere rw’amabateri ya EV ruzoshika ku mpera y’ubuzima bwarwo nko mu 2030, ni ko n’ivyo gusubira gukoresha bizoduga. Ivyuma vyo gusubiza neza amabateri-y’agaciro ka nickel sulfate mu mabateri yakoreshejwe birabandanya gutera imbere.

Impinduka mu biciro zihura n'imikazo y'uguhiganwa. Ugutanga cane n’uguhiganwa gukomeye ubu birahagarika ibiciro naho hariho iterambere rikomeye ry’abasaba. Uko abahinguzi bafise intege nke basohoka canke ubushobozi bugabanuka, uburinganire bw’isoko bukwiye gutera imbere, bikaba bishobora gutuma ibiciro biguma bihagaze canke bikaduza ibiciro biva ku rugero rwo hasi biriko ubu.

Ibisabwa kugira ngo umuntu ashobore kugumaho biriko birakomera mu bijanye n’ugutanga ibikoresho. Abahinguzi b’imiduga barashikirwa n’imikazo yo kwerekana ko bafise inshingano ku bidukikije no ku mibano mu gushaka ibikoresho. Abahinguzi b’amabuye y’agaciro yitwa Nickel sulfate bashiramwo amahera mu buhinga busukuye, mu migenzo y’ubucukuzi bw’amabuye y’agaciro, n’imirongo y’ugutanga amabuye y’agaciro mu buryo buboneye, boshobora gutegeka ko batanga ibiciro vy’agaciro kanini.

Ugukekeranya kw’ingingo mfatirwako z’ubudandaji kuragira ico gukoze ku migambi. Ibiciro, ukugenzura ivyoherezwa hanze, n’izindi nzitizi z’ubudandaji biratuma uruhererekane rw’ugutanga ibicuruzwa kw’isi yose rugorana. Ubushinwa buherutse gucungera ivyoherezwa hanze ku buhinga bwa bateri bugaragaza ko hariho ugushaka gukura kwo gukoresha uburenganzira bw’ubudandaji kugira ngo umuntu aronke inyungu.

Ubundi buryo bwo gukoresha amabateri buratanga uguhiganwa n’akaryo. Bateri za sodium-ion, amabateri akomeye-, n'ubundi buhinga bushasha bwoshobora kugabanya uburemere bwa nickel. Ariko rero, amabateri ya nickel-based lithium-ion azoshobora kuganza n’imiburiburi mu myaka cumi izoza kubera inyungu zifise mu bijanye n’ugukora neza be n’ukuntu zikomeye mu guhingura.

Ivyiyumviro vy’ishoramari vyerekana ivyo bihinduka. Abahinguzi bahurikiye hamwe bariko bubaka ibikorwa vy’ubuhinga bwa sulfate bitaziguye-ku -sulfate mu gihe kandi bariko barashiramwo amahera mu guhingura ibikoresho vy’imbere mu gihugu. Ubu bufatanye buhagaze bufise intumbero yo gufata agaciro kanini no gufasha neza abahinguzi b'amabateri ku bikoresho bihoraho, vy'agaciro kanini.

Inkuru y’ivyo bita nickel sulfate yerekana ingene imiti y’inganda yashinzwe ishobora kuronka uburyo bushasha bwo guhindura ibintu. Mu ntango, iyo ntungamubiri yari yateguwe kugira ngo ikoreshe amashanyarazi, ubu ihagaze hagati y’ihinduka ry’ibinyabiziga bikoresha amashanyarazi, uguhingura kwayo n’ugushinga ibiciro vyayo bigenda birushiriza gufatanya n’urugero rw’ugukoresha amashanyarazi mu gutwara abantu n’ibintu. Iterambere ry’isi yose ry’inguvu ziramvye rituma habaho ivyipfuzo bitagira uko bingana mu gihe nyene bitera umukazo inganda kugira ngo zikoreshe uburyo bwo guhingura busukuye-ububiri buzotuma amasoko y’ivyuma vy’i nickel sulfate agira ico akoze mu myaka izoza.