Ngokwemigangatho yoshishino, umthamo oqingqiweyo ngokuqhelekileyo ngowona mthamo uphantsi, oko kukuthi, ibhetshi yeebhetri ihlawuliswa kwi-CC/CV0.5C kwiqondo lobushushu legumbi lee-degrees ezingama-25, emva koko ivunyelwe ukuba iphumle kangangexesha elithile (ngokuqhelekileyo iiyure ezili-12. ). Ukukhutshwa kwi-3.0V, ukukhutshwa rhoqo kwe-0.2c (i-2.75V ikwangumgangatho, kodwa umphumo awubalulekanga; i-3v ukuya kwi-2.75V yehla ngokukhawuleza, kwaye umthamo uncinci), ixabiso lomthamo okhutshiweyo ngokwenene lixabiso lomthamo ibhetri enomthamo ophantsi, kuba ibhetshi yeebhetri Kufuneka kubekho ukungafani komntu ngamnye. Ngamanye amazwi, umthamo webhetri kufuneka ube mkhulu okanye ulingane nomthamo wesiqhelo.

1.18650 inkqubo yokutshaja ibhetri ye-lithium

Ezinye iitshaja zisebenzisa izisombululo ezingabizi kakhulu ukufikelela, ulawulo oluchanekileyo alulunganga, kulula ukubangela ukutshajiswa kwebhetri okungaqhelekanga, okanye ukonakalisa ibhetri. Xa ukhetha ishaja, zama ukukhetha i-brand enkulu ye-18650 ishaja yebhethri ye-lithium, umgangatho kunye nokuthengisa emva kokuthengisa kuqinisekisiwe, kwaye ubomi benkonzo yebhetri buhlala ixesha elide. I-18650 ishaja yebhetri ye-lithium inezikhuselo ezine: ukhuseleko olufutshane, ukhuseleko lwangoku, ukukhuselwa kwe-voltage, ukukhuselwa koxhumo lwebhetri, njl. uxinzelelo luyenyuka.

Ngesi sizathu, isixhobo sokukhusela sibeka esweni amandla ombane ebhetri. Xa ibhetri igcwaliswe ngokugqithisileyo, umsebenzi wokukhusela ukutshajiswa okugqithisileyo uyasebenza kwaye ukutshaja kuyekiwe. Ukhuseleko lokukhupha ngaphezulu: Ukuthintela ukukhutshwa okugqithisileyo kwebhetri ye-lithium, xa amandla ombane ebhetri ye-lithium ephantsi kunendawo yokufumanisa i-voltage over-discharge, ukhuseleko lokukhupha ngaphezulu luyasebenza kwaye ukukhutshwa kumisiwe, ukuze ibhetri ikwimo yokulinda esezantsi. Ukhuseleko lwangoku kunye nolufutshane lwesekethe: Xa ibhetri ye-lithium yokukhupha ikhoyo inkulu kakhulu okanye i-short-circuit isenzeka, isixhobo sokhuselo sivula umsebenzi wokhuseleko wangoku.

Ulawulo lokutshaja kwebhetri ye-lithium luhlukaniswe ngamanqanaba amabini. Inqanaba lokuqala kukutshaja kwangoku rhoqo. Xa amandla ombane ebhetri engaphantsi kwe-4.2V, itshaja itshaja ngokuqhubekayo. Inqanaba lesibini linqanaba lokutshaja ombane rhoqo. Xa i-voltage yebhetri i-4.2 V, ngenxa yeempawu zeebhetri ze-lithium, ukuba i-voltage iphezulu, iya konakala. Itshaja iya kulungiswa kwi-4.2 V kwaye umbane wokutshaja uya kuncipha ngokuthe ngcembe. Ixabiso elithile (ngokuqhelekileyo ukusetha i-1/10 yangoku), ukunqumla isiphaluka sokutshaja kwaye ukhuphe umyalelo opheleleyo wokutshaja, ukutshaja kugqityiwe.

Ukugqithiswa kunye nokugqithiswa kweebhetri ze-lithium kuya kubangela umonakalo osisigxina kwi-electrode efanelekileyo kunye nembi. Ukukhutshwa okugqithisileyo kuya kubangela ukuba isakhiwo se-anode carbon sheet siwele, ngaloo ndlela sithintele i-lithium ion ukuba ifakwe ngexesha lokutshaja. Ukutshaja kakhulu kuya kubangela ukuba i-lithium ion ezininzi zitshone kwisakhiwo sekhabhoni, ezinye zazo ezingasakwazi ukukhutshwa.

2.18650 Umgaqo wokutshaja ibhetri yeLithium

Iibhetri zeLithium zisebenza ngokutshaja kunye nokukhupha. Xa ibhetri ihlawuliswa, ii-ion ze-lithium zenziwa kwi-electrode efanelekileyo yebhetri kwaye ifike kwi-electrode engafanelekanga nge-electrolyte. Ikhabhoni engalunganga iyalekwa kwaye inemicropores ezininzi. Iiyoni ze-lithium ezifikelela kwi-electrode engafanelekanga zifakwe kwiipores ezincinci ze-carbon layer. Okukhona kufakwe i-lithium ion, kokukhona umthamo wokutshaja mkhulu.

Ngokufanayo, xa ibhetri ikhutshwe (njengoko senzayo ngebhetri), i-lithium ion efakwe kwikhabhoni engafanelekanga iya kuphuma kwaye ibuyele kwi-electrode efanelekileyo. Okukhona i-lithium ion ibuyela kwi-electrode efanelekileyo, inkulu umthamo wokukhupha. Into esidla ngokuyibiza ngamandla ebhetri kukukhupha umthamo.

Akunzima ukubona ukuba ngexesha lokutshaja kunye nokukhupha iibhetri ze-lithium, i-ion ze-lithium zikwisimo sokuhamba ukusuka kwi-electrode efanelekileyo ukuya kwi-electrode engafanelekanga kwaye emva koko kwi-electrode efanelekileyo. Ukuba sithelekisa ibhetri ye-lithium kwisitulo sokugungqa, iziphelo ezibini zesitulo sokugungqa zizibonda ezimbini zebhetri, kwaye i-ion ye-lithium ifana nomdlali obalaseleyo, ehamba ngasemva naphambili phakathi kweziphelo ezimbini zesitulo sokugungqa. Yiyo loo nto iingcali zinike iibhetri ze-lithium igama elithandekayo: iibhetri zesitulo esishukumayo.