“” ibhekisela ekusetshenzisweni kwama-polymers njengama-electrolyte, ahlukaniswe ngokuqondile ama-semi-polymers nawo wonke ama-polymers. I-semi-polymer isho ukumboza i-polymer (imvamisa i-PVDF) kusihlukanisi ukwenza ibhethri libe lukhuni nebhethri libe nzima, kuyilapho i-electrolyte iseyi-electrolyte ewuketshezi.

I-“polymer isiyonke” ibhekisela ekusetshenzisweni kwe-polymer ukwakha inethiwekhi yejeli ngaphakathi kwebhethri, bese ijova i-electrolyte ukuze yakhe i-electrolyte. Nakuba wonke amabhethri e-polymer esasebenzisa ama-electrolyte anguketshezi, ukusetshenziswa kwawo kunciphe kakhulu, kuthuthukisa kakhulu ukuphepha kwamabhethri e-lithium. Ngokwazi kwami, u-Sony kuphela okwamanje okhiqiza ngobuningi amabhethri e-lithium e-polymer.

Ngakolunye uhlangothi, amabhethri e-polymer abhekisela kumabhethri asebenzisa ifilimu yepulasitiki ye-aluminium njengokupakishwa kwangaphandle kwamabhethri e-lithium, aziwa nangokuthi amabhethri e-soft-pack. Ifilimu yokupakisha yakhiwe ungqimba lwe-PP, ungqimba lwe-Al kanye nongqimba lwenayiloni. Ngenxa yokuthi i-polypropylene ne-nylon zingama-polymer, lawa maseli abizwa ngokuthi amaseli e-polymer.

1. Intengo ephansi

Intengo yamazwe ngamazwe ka-18650 cishe i-$1/PCS, futhi intengo ye-2Ah cishe i-3 yuan/Ah. Intengo ephansi yebhethri ye-lithium ye-polymer ingu-4 yuan/Ah, intengo emaphakathi ingu-5-7 yuan/Ah, kanti intengo emaphakathi ingu-7 yuan/Ah. Isibonelo, i-ATL nonkulunkulu wamandla bangathengisa cishe ngo-10 yuan/ah, kodwa abangashadile bakho abazimisele ukuzamukela.

2. Ayikwazi ukwenziwa ngezifiso

U-Sony ubezama ukwenza amabhethri e-lithium afana namabhethri e-alkaline. 5 ibhethri, cha. 7 amabhethri ayafana emhlabeni wonke. Kodwa inzuzo ebalulekile yamabhethri e-lithium yukuthi angaklanywa ngokuvumelana nezidingo zamakhasimende, ngakho-ke ayikho indinganiso efanayo. Kuze kube manje, kunemodeli eyodwa kuphela evamile engu-18650 embonini yebhethri ye-lithium, futhi enye iklanyelwe ukuhlangabezana nezidingo zamakhasimende.

3. Ukuvikeleka okungalungile

Siyazi ukuthi ngaphansi kwezimo ezimbi kakhulu (ezifana nokukhokhiswa ngokweqile, izinga lokushisa eliphezulu, njll.), ukusabela kwamakhemikhali anobudlova kwenzeka ngaphakathi kwebhethri ye-lithium, okuholela esilinganisweni esikhulu segesi. Ibhethri le-18650 linebhokisi lensimbi elinamandla athile. Lapho umfutho wangaphakathi ufinyelela ezingeni elithile, igobolondo lensimbi lizoqhuma futhi liqhume, libangele izingozi ezinkulu zokuphepha.

Yingakho igumbi lapho ibhethri le-18650 lihlolwa khona ngokuvamile livikelwe ngokuqinile futhi alikwazi ukufinyelelwa ngesikhathi sokuhlolwa. Amabhethri e-polymer awanayo le nkinga. Ngisho nangaphansi kwezimo ezimbi kakhulu, ngenxa yamandla aphansi efilimu yokupakisha, ukucindezela kuyoba phezulu kancane, ukuphuka ngeke kuqhume, futhi esimweni esibi kakhulu kuzoshisa. Amabhethri e-polymer aphephile kunamabhethri angu-18650.

4. Ukuminyana kwamandla okuphansi

Umthamo ojwayelekile webhethri elingu-18650 ungafinyelela cishe ku-2200mAh, ngakho ukuminyana kwamandla cishe ku-500Wh/L, kuyilapho ukuminyana kwamandla ebhethri le-polymer kungasondela ku-600Wh/L.

Kodwa amabhethri e-polymer nawo anemibi yawo. Okubalulekile yizindleko eziphezulu, ngoba zingaklanywa ngokwezidingo zekhasimende, futhi izindleko zocwaningo nentuthuko lapha kufanele zifakwe. Ngaphezu kwalokho, ukuma kuyashintsha futhi ezihlukahlukene zibanzi. Izinhlobo ezahlukene zezinto ezingajwayelekile ezidalwe ngesikhathi sokukhiqiza nazo zikhiqiza izindleko ezintsha. Ukungaguquguquki kahle kwebhethri le-polymer ngokwayo kuletha ukuguquguquka kwedizayini, futhi ivamise ukuhlelwa kabusha ukuze amakhasimende akhiqize umehluko ongu-1mm.