- 06
- Dec
Uyini umehluko phakathi kwebhethri ye-lithium nebhethri yesitoreji?
Amabhethri e-lithium nama-accumulators ayizinhlobo ezimbili zamabhethri asetshenziswa kabanzi okwamanje, futhi aphakeme kunama-accumulators ngokusebenza. Ngenxa yezinkinga zamanje zamanani, izinsiza eziningi zamandla e-UPS zisebenzisa amabhethri, kodwa ngemva kwesikhathi esithile, amabhethri e-lithium angawashintsha ngokuphelele amabhethri e-lead-acid. Okulandelayo ulwazi olwabiwe abakhiqizi bebhethri ye-lithium ngomehluko phakathi kwamabhethri e-lithium namabhethri okugcina. Ngemva kokufunda okuqukethwe okulandelayo, ngithemba ukuthi kuzoba usizo kuwe.
Amabhethri e-lithium nama-accumulators ayizinhlobo ezimbili zamabhethri asetshenziswa kabanzi okwamanje, futhi aphakeme kunama-accumulators ekusebenzeni kwamabhethri e-lithium. Ngenxa yezinkinga zamanje zamanani, izinsiza eziningi zamandla e-UPS zisebenzisa amabhethri, kodwa ngemva kwesikhathi esithile, amabhethri e-lithium angawashintsha ngokuphelele amabhethri e-lead-acid. Okulandelayo ulwazi olwabiwe abakhiqizi bebhethri ye-lithium ngomehluko phakathi kwamabhethri e-lithium namabhethri okugcina. Ngemva kokufunda okuqukethwe okulandelayo, ngithemba ukuthi kuzoba usizo kuwe.
Umkhiqizi webhethri ye-lithium
1. Impilo yomjikelezo wabakhiqizi bebhethri ye-lithium
Amabhethri e-lithium anesikhathi eside sokuphila futhi amabhethri anesikhathi sokuphila esifushane. Inani lemijikelezo yamabhethri e-lithium ngokuvamile licishe libe ngu-2000-3000. Inombolo yemijikelezo yebhethri cishe izikhathi ezingu-300-500.
2, isisindo energy kwabantu
Ukuminyana kwamandla amabhethri e-lithium ngokuvamile angu-200~260wh/g, futhi amabhethri e-lithium aphindwe izikhathi ezingu-3–5 kuneleasidi yomthofu. Okusho ukuthi, esimweni somthamo ofanayo, amabhethri e-lead-acid aphindwe izikhathi ezi-3 kuya kwezi-5 kunamabhethri e-lithium. Ngakho-ke, ekukhanyeni kwemishini yokugcina amandla, amabhethri e-lithium anenzuzo. Amabhethri e-lead-acid ngokuvamile angu-50~70wh/g, anokuminyana kwamandla aphansi kanye nokukhuluphala ngokweqile.
3. Amandla e-Volumetric abakhiqizi bebhethri ye-lithium
Ukuminyana kwevolumu yamabhethri e-lithium ngokuvamile cishe izikhathi ezingu-1.5 zamabhethri, ngakho-ke esimweni somthamo ofanayo, amabhethri e-lithium cishe mancane ngo-30% kunamabhethri e-lead-asidi.
4, izinga lokushisa lihlukile
Ukushisa okusebenzayo kwebhethri ye-lithium yi–20-60 degrees Celsius, i-thermal peak yebhethri ye-lithium iron phosphate ifinyelela ku-350-500, futhi ingakhulula i-100% yomthamo wayo ekushiseni okuphezulu.
Izinga lokushisa elivamile lokusebenza kwebhethri -5 ~ 45 degrees. Uma izinga lokushisa lehla ngo-1 degree, umthamo webhethri ohlobene uzoncishiswa cishe ngo-0.8%.
I-5, abakhiqizi bebhethri ye-lithium bayashaja futhi bakhiphe
Abakhiqizi bebhethri ye-lithium bathi amabhethri e-lithium-ion awanayo inkumbulo futhi angashajwa nganoma yisiphi isikhathi, ngokuzikhipha okuphansi, futhi angagcinwa isikhathi eside.
Ibhethri eligciniwe linenkumbulo futhi alikwazi ukushajwa futhi lishajwe nganoma yisiphi isikhathi. Kukhona into ebucayi yokuzikhipha, uma ibhethri ishiywe isikhathi esithile, kulula ukuchithwa. Izinga lokukhishwa lincane, futhi ukukhishwa kwamanje okuphezulu akukwazi ukwenziwa isikhathi eside.
6. Izinto zangaphakathi
I-electrode enhle yebhethri ye-lithium yi-lithium cobaltate/lithium iron phosphate/lithium bromate, igraphite, i-organic electrolyte. I-electrode ephozithivu yebhethri le-lead-acid i-lead oxide, i-metallic lead, futhi i-electrolyte i-concentrated sulfuric acid.
7, ukuphepha ukusebenza
Abakhiqizi bebhethri ye-lithium bathi amabhethri e-lithium avela ekuzinzeni kwezinto ezibonakalayo ze-electrode kanye nomklamo wokuphepha othembekile. Amabhethri e-lithium iron phosphate aphumelele izivivinyo eziqinile zokuphepha futhi ngeke aqhume lapho kushayisana okunzima. I-Lithium iron phosphate inokuqina okuphezulu kokushisa kanye namandla e-electrolyte oxidation. Iphansi, ngakho ukuphepha kuphezulu. Amabhethri: Amabhethri aneasidi yomthofu aqhume ngenxa yokushayisana okunamandla, abeka engcupheni izimpilo zabathengi.
I-8. Intengo
Amabhethri e-lithium abiza cishe izikhathi ezi-3 kunamabhethri. Ngokuhlaziywa kwempilo, noma ngabe izindleko ezifanayo zitshaliwe, impilo yesevisi izoba yinde.
9, ukuvikelwa kwemvelo eluhlaza
Izinto zebhethri ye-lithium azinazo izinto ezinobuthi neziyingozi, futhi akukho ukungcola ekukhiqizeni nasekusetshenzisweni. Abakhiqizi bebhethri ye-lithium bathi abonwa njengamabhethri aluhlaza ngokuhambisana nemithetho ye-European RoHS. Kunenani elikhulu lomthofu emabhethrini aneasidi yomthofu, futhi ukulahlwa okungafanele ngemva kokulahlwa kuzobangela ukungcoliswa kwemvelo.