Ibhethri ye-lithium-ion iphelile nini?

Pengarang：Iflowpower – పోర్టబుల్ పవర్ స్టేషన్ సరఫరాదారు

Uma sikhuluma ngokuqinile, i-voltage yebhethri ye-lithium-ion ishajwa ngaphezu komngcele B (4.20V) ikhokhiswa kakhulu. Kodwa ukushajwa ngokweqile kuyizinga losayizi.

Umuntu ojwayelekile ucabanga ngaphansi kuka-4.24V, kungenzeka angabi phezulu kakhulu. Noma "ingakwazi ukushaja okuncane.

Ukucaciswa kwebhethri komkhiqizi webhethri le-lithium-ion nakho kukhombisa ukuthi umkhawulo wokushaja kagesi ngu-4.20V +/- 0.04V.

Phakathi komngcele A kanye nomngcele B (ophakeme kuno-4.24V, ngaphansi kuka-4.35) V) Le ndawo ingabizwa ngokuthi i-medium to charge.

Amabhethri e-Lithium ion kulolu hlu lwe-voltage, umthamo wokukhipha uzoba phezulu kunebhethri ye-lithium ion evamile. Sicela ubone okumaphakathi kokushaja kanye nesilingo sedatha yesipiliyoni yibhethri: GY383450. Amandla okuzisholo: 550mAh.

Isistimu yokushaja elinganiselwe yokushaja engu-4.20V: I-voltage iphansi kunokushaja ingcindezi elinganiselwe, ngemva kokuba i-voltage ifinyelela ku-voltage yomkhawulo wokushaja, i-voltage yokulungisa ayishintshile, yamanje iyehla kancane kancane ibe ngu-20 mA ukunqanyulwa kokushaja. Lena imodi evamile yokushaja i-CC/CV.

Uhlelo lokukhipha: 1C (550mA), uhlelo lokuqeda amandla kagesi we-2.75V lubhekiselwa ngokugcwele ekusetshenzisweni okujwayelekile kazwelonke. Singazama ukushintsha i-voltage yomkhawulo wokushaja, ngamabomu Umkhiqizo wokuhlola ukhokhiswe ngokweqile.

Faka kuhlu amafomu okuhlola kanje: Umkhawulo wokushajwa kabusha komjikelezo we-voltage V amandla wokushaja we-MAH wokukhipha umthamo we-MAH kanye nesilinganiso somthamo olinganiselwe% wokuqala 4.204565 Lo ngumthamo olinganiselwe wesibili 4.204818% okwesithathu 4.

20V569564100 % Isikhathi sesine 4.35V633627112% okokuqhathanisa, okubonisa ukuthi umthamo olinganiselwe webhethri unokuhluka okuncane ngemva kokushajwa ngokweqile. Kuyo ingathola isiphetho, ukushajwa ngokweqile kungakhuphula umthamo webhethri.

Kodwa lo mkhuba Awufani, lapho ngiqhubeka nokushaja ngokweqile leli bhethri le-lithium ion ngomkhawulo wokushaja ongu-4.35V. Isiphetho asilona ithemba kangako.

Ngemuva kwe-50, umthamo webhethri ngu-480mAh. Selivele lingama-85% omthamo olinganisiwe. Futhi lapho ngenza ukusakazwa okuvamile kwale modeli esikhathini esidlule, umthamo wami wawusengaphezu kuka-88% womthamo olinganiselwe emijikelezweni engu-150.

Kuyabonakala ukuthi impilo yebhethri ishajwe ngokweqile. Ngaphezu kwalokho okushiwo Yebo, ibhethri elishajwe kakhulu libe isigubhu esincane, ukujiya kwangempela kungu-3.84mm, kanti ukujiya kungu-4.

25mm ngemva kwemijikelezo engu-50. Njengoba i-voltage engaphezu kuka-4.35V ingafinyelelwanga yibhethri ye-lithium-ion ehlotshaniswa nomugqa wokuvikela Bonke abasebenzisi abakhulu bavame ukuhlangana nalesi simo.

Ukushajwa kabusha kwamaqanda okungafanelekile (okuvame ukutholakala ngenhla kwe-nickel-hydrogen kanye negiya le-lithium-ion kungakhethwa) kuyicala. Iphakeme kakhulu kune-4.35V Ibukeka kanjani? Ngenza isilingo sokuphepha.

Kuwukukhipha umugqa wokuvikela webhethri, bese ushaja umgogodla webhethri ye-lithium-ion nge-voltage engu-5.0V. Umphumela uba amahora angu-3 ~ 4 Ngokuzayo, ibhethri liyisigubhu esinzima, futhi amanye amaseli angafaneleki aqhuma.

Ngaphansi kwe-electron microscopy, ubuhlakani be-lithium kagesi bubekwe ngokwedlulele, futhi i-electrode ephozithivu ingenye yamakhona astakiwe, futhi umumo uyahlukahluka kuye ngento ye-anode. Ukuvela okuqinile kokukhipha ngokweqile kubangelwa ukugoqa kwesendlalelo sepuleti elingalungile. Lapho ushaja, inombolo kanye nokuba lula kwe-lithium ion kupuleti le-electrode elingalungile kunqunyelwe.

Ukwehla kwamandla, ukumelana okusha kwangaphakathi, ukuphila okufushane akutholakali. Okubi nakakhulu! Ibhethri selifinyelele esimweni esigcwele. Ukusabela kokufakwa kwe-electrode engemihle kwenziwa ekubekweni kwensimbi ye-lithium ebusweni be-electrode engalungile, futhi inani lokushisa elikhiqizwe yi-solvent ebangelwa ukushajwa ngokweqile liphakeme kakhulu kunokushisa kwe-lithium ion kanye nokusabela kwe-solvent esimweni sokubuyisela emuva): Ukwanda kwezinga lokushisa kwebhethri, i-lithium yensimbi ne-solvent, ukusabela kwebhethri ye-lithium kanye ne-solvent kumlilo, ukuqhuma kwenzeka.

Ngokuhlaziywa kwe-electrolyte, i-tanguger ne-lithium metal nayo ingasabela. Ngemuva kokukhokhiswa, phezulu epuleti i-lithium metal crystallization efana nenaliti, futhi i-diaphragm izokwenzeka. Imaski, ukuzikhipha ngokweqile; I-crystal enzima yesekethe yamanje ibangele ukushisa kwebhethri ngokushesha, ukuhlaziywa kwe-electrolyte gasification.

Lesi simo, noma izinga lokushisa liphezulu kakhulu ukwenza ukushiswa kwezinto ezibonakalayo kuqhume. Noma igobolondo liqala ukushaya, ukuze umoya otshalwe kuwo kanye nezinsimbi ze-lithium, zonke ezaqhunyiswa ngamabhomu ekuqhumeni komlilo.