Ibidukikije bikoreshwa na batiri ya polymer lithium nabyo ni ingenzi cyane muguhindura ubuzima bwacyo. Muri byo, ubushyuhe bwibidukikije ni ikintu cyingenzi cyane. Ubushyuhe buke cyane cyangwa hejuru cyane burashobora kugira ingaruka kumibereho ya bateri ya Li-polymer. Mubikoresho bya batiri yingufu hamwe nibisabwa aho ubushyuhe bugira uruhare runini, gucunga ubushyuhe bwa bateri ya Li-polymer birasabwa kunoza imikorere ya bateri.

Impamvu zubushyuhe bwimbere bwimbere ya Li-polymer yamapaki

KuriBateri ya Li-polymer, ubushyuhe bwimbere ni ubushyuhe bwa reaction, ubushyuhe bwa polarisiyasi nubushyuhe bwa Joule. Imwe mumpamvu nyamukuru zituma ubushyuhe bwiyongera bwa batiri ya Li-polymer niyongera ryubushyuhe riterwa no kurwanya imbere kwa bateri. Byongeye kandi, kubera ishyirwa ryinshi ryumubiri ushyushye, akarere ko hagati ntigomba kwegeranya ubushyuhe bwinshi, kandi agace kegereye ni gake, ibyo bikaba byongera ubusumbane bwubushyuhe buri hagati ya selile imwe muri bateri ya Li-polymer.

Polymer lithium bateri uburyo bwo kugenzura ubushyuhe

1. Guhindura imbere

Ubushyuhe buzashyirwa mubahagarariwe cyane, ihinduka ryinshi ryubushyuhe ahantu, cyane cyane ubushyuhe bwo hejuru kandi buke, kimwe na centre ya polymer lithium bateri yegeranya ahantu hakomeye.

1. Amabwiriza yo hanze

Gukonjesha gukonjesha: Kugeza ubu, urebye uburyo bugoye bwo gucunga ubushyuhe bwa bateri ya Li-polymer, inyinshi muri zo zifata imiterere yoroshye yuburyo bwo gukonjesha ikirere. Urebye uburinganire bwogukwirakwiza ubushyuhe, benshi muribo bakoresha uburyo bubangikanye.

1. Kugena ubushyuhe: imiterere yoroshye yo gushyushya ni ukongeramo amasahani yo gushyushya hejuru no hepfo ya batiri ya Li-polymer kugirango ushyire mubikorwa ubushyuhe, hariho umurongo wo gushyushya mbere na nyuma ya buri bateri ya Li-polymer cyangwa gukoresha firime yo gushyushya yazengurutse kuriBateri ya Li-polymeryo gushyushya.

Impamvu nyamukuru zo kugabanya ubushobozi bwa bateri ya lithium polymer mubushyuhe buke

1. Imiyoboro mibi ya electrolyte, kutagira amazi meza na / cyangwa gutembera kwa diafragma, kwimuka gahoro kwa ioni ya lithium, umuvuduko wo kohereza amafaranga kuri interineti ya electrode / electrolyte, nibindi.

2. Byongeye kandi, inzitizi ya SEI membrane yiyongera ku bushyuhe buke, bigabanya umuvuduko wa ioni ya lithium inyura kuri electrode / electrolyte. Imwe mu mpamvu zitera kwiyongera kwa impedance ya firime ya SEI nuko byoroshye ko ioni ya lithium iva muri electrode mbi mubushyuhe buke kandi bigoye kuyishiramo.

3.

Ubushyuhe buke ku mikorere ya bateri ya lithium polymer

1. Ubushyuhe buke ku kwishyuza no gusohora imikorere

Mugihe ubushyuhe bugabanutse, impuzandengo yo gusohora voltage nubushobozi bwo gusohora bwabateri ya lithium polymerziragabanuka, cyane cyane iyo ubushyuhe ari -20 ℃, ubushobozi bwo gusohora bateri hamwe nimpuzandengo yo gusohora igabanuka vuba.

2. Ubushyuhe buke kumikorere yizunguruka

Ubushobozi bwa bateri bwangirika vuba kuri -10 and, kandi ubushobozi bugumaho 59mAh / g gusa nyuma yinzinguzingo 100, hamwe na 47.8% byangirika; bateri yasohotse mubushyuhe buke igeragezwa mubushyuhe bwicyumba cyo kwishyuza no gusohora, kandi imikorere yo kugarura ubushobozi irasuzumwa mugihe. Ubushobozi bwabwo bwagarutse kuri 70.8mAh / g, hamwe no gutakaza ubushobozi bwa 68%. Ibi birerekana ko ubushyuhe buke bwa bateri bugira uruhare runini mukugarura ubushobozi bwa bateri.

3. Ingaruka yubushyuhe buke kumikorere yumutekano

Amashanyarazi ya polimeri ya lithium ni inzira ya lithium ion iva muri electrode nziza binyuze muri electrolyte yimuka yashyizwe mubintu bibi, ion ya lithium kuri polymerize mbi ya electrode, na atome esheshatu za karubone zifata ion ya lithium. Ku bushyuhe buke, ibikorwa bya reaction ya chimique biragabanuka, mugihe kwimuka kwa ioni ya lithium bigenda gahoro, ioni ya lithium hejuru ya electrode itari nziza ntabwo yashyizwe muri electrode mbi yagabanijwe kugeza ku cyuma cya lithium, kandi imvura igwa kuri hejuru ya electrode mbi kugirango ikore lithium dendrite, ishobora gutobora byoroshye diafragma itera umuzunguruko mugufi muri bateri, ishobora kwangiza bateri kandi igatera impanuka z'umutekano.

Hanyuma, turacyashaka kukwibutsa ko bateri ya lithium polymer idakwiye kwishyurwa mugihe cyizuba mubushyuhe buke, kubera ubushyuhe buke, ion ya lithium yatewe kuri electrode mbi izabyara kristu ya ion, itobora diaphragm, muri rusange itera micro-short circuit bigira ingaruka mubuzima no mumikorere, guturika gukomeye. Abantu bamwe rero bagaragaza imbeho ya polymer lithium yubukonje ntishobora kwishyurwa, ibi biterwa nigice hamwe na sisitemu yo gucunga bateri biterwa no kurinda ibicuruzwa.