Uyibuyisela njani ibhetri ye-lithium-ion ephezulu?

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Yintoni ibhetri ephezulu? Ndilibiza njani izinga eliphezulu lebhetri ye-lithium-ion? Ibhetri yokuphakama okuphezulu kuthetha ukuba ibhetri inokukhutshwa ngokuphezulu, intlawulo ephezulu yokukhulisa kunye nokukhutshwa kwebhetri ye-lithium ion inxulumene ngokusondeleyo nokuhamba kwe-lithium ion kwi-electrode, i-electrolyte kunye ne-interface, echaphazela izinto zesantya sokufuduka kwe-lithium ion kuchaphazela ibhetri. Ukunyusa okuphezulu kunye nokusebenza kokukhupha. Yintoni ibhetri ephezulu? Ibhetri yokuphakama okuphezulu inokuhlangabezana nesantya sokukhupha i-100C, i-60C ehlala ihleli, isetyenziswe ngokubanzi kwizicelo ezikhethekileyo ezifana nokukhutshwa okukhulu kwangoku.

Ilungele iimveliso zamandla aphezulu njengedrone, imodeli yenqwelomoya, izixhobo zombane. Ibhetri yexabiso ngokuqhelekileyo ibhekisela kwibhetri ye-lithium ion, ibhetri ye-lithium ion ibhetri ephezulu, ebalulekileyo ukuhamba phakathi kwe-lithium ion phakathi kweepali ezilungileyo kunye nezibi. Ngethuba lokuhlawula kunye nenkqubo yokukhupha, i-Lu + ifakwe kwaye ivuliwe phakathi kwee-electrode ezimbini: kwibhetri ehlaziywayo, i-Li + ukusuka kwi-electrode efanelekileyo, ukufakwa kwe-electrode engafanelekanga, i-electrode engafanelekanga ikwimeko ye-lithium; ngexesha lenkqubo yokukhupha, ngokuchaseneyo.

Izinto ezisetyenziswa ngokubanzi kunye nezinto ze-lithium njenge-electrodes. Ungummeli weeseli zanamhlanje eziphezulu zokusebenza. Ibhetri yeLithium-ion yahlulwe ibe ziibhetri zexabiso eliphezulu kunye neebhetri ze-lithium ion.

Ngaphambili, ibhetri ye-lithium-ion isetyenziswe kwiifowuni eziphathwayo kunye neelaptops, ezihlala zibizwa ngokuba ziibhetri eziphezulu, kodwa ibhetri yokwenyani yokukhulisa kakhulu ayifane isetyenziswe kwimveliso ye-elektroniki yemihla ngemihla ngenxa yomngcipheko wabo omkhulu. Ubume bebhetri ye-polymer ye-lithium-ion ephezulu yokukhulisa i-high-magnification inepropati ephezulu yokukhupha, iqonga eliphezulu, ubomi bomjikelezo, kunye nesantya sokukhutshwa sinokuhlangabezana nesantya se-pulse ye-100C, i-60C ehlala ixesha elide, ukutshaja ngokukhawuleza ukuya kwi-5C. Ndilibiza njani izinga eliphezulu lebhetri ye-lithium-ion? Okokuqala, ibhetri entsha ihlawuliswa, ukwenza isantya esitsha se-lithium-ion ibhetri, emva kokuba ibhetri ibekwe, iya kungena kwindawo yokulala, ngelo xesha umthamo ungaphantsi kwesiqhelo, ixesha lokusetyenziswa lifutshane, ukuqala.

Indlela yokuqalisa ibhetri ye-lithium-ion ilula kakhulu. Emva kwe-3-5 intlawulo eqhelekileyo kunye nemijikelezo yokukhupha, ibhetri inokuvulwa ukubuyisela umthamo wayo oqhelekileyo. Okwesibini, ibhetri endala yokutshaja i-1, ibhetri endala ibhekisela kwibhetri ehlawulwe kwaye ikhutshwe, kungekhona ibhetri echithwayo.

Ibhetri ye-lithium-ion yokukhulisa okuphezulu ayinanto yokwenza nenani lentlawulo kunye nokukhutshwa, akanalo umphumo wememori, kungakhathaliseki ukuba indlela yokutshaja ayichaphazeli njani inani lemijikelezo yokuhlawula. Ngoko ke musa ukusebenzisa ibhetri ukuhlawula xa ibhetri iphelelwe amandla ngokupheleleyo, kungcono ukusebenzisa ibhetri ehlawulelwayo xa utshaja, kwaye ixesha lokutshaja lingaphakathi kweeyure ze-2-3. Ngokuqinisekileyo, kufuneka uhlawule ngokupheleleyo, kungekhona ngokuyimfuneko kunye nokukhupha okuncinci kunye nokuncinci.

I-2, i-voltage yokusebenza yokhuseleko ye-voltage yokutshaja ibhetri ye-lithium ion ephezulu-speed yi-2.8V ukuya kwi-4.2V, ephantsi okanye ephezulu kunolu luhlu lwe-voltage, kunye ne-ion ze-lithium azihlali kwibhetri.

Ukuqinisekisa ukuba ibhetri ingaphakathi kuluhlu lokhuseleko, unetshaja ekhethekileyo. Ezi tshaja ziya kulungelelanisa ngokuzenzekelayo imo yokutshaja ngokwemeko yangoku yebhetri. I-3, isixhobo sokutshaja ibhetri ye-lithium ion ephezulu ye-speed kufuneka isebenzise itshaja ekhethekileyo ukuqinisekisa ukutshaja ngokukhuselekileyo.

Xa itshaja isebenza, itshaja ibhetri ngokuqhubekayo. Ngombane omtsha webhetri, itshaja iya kongeza amandla ombane wokutshaja ukukhawulezisa isantya sokutshaja. Xa ibhetri ifika ku-4.

I-2V cutoff, ibhetri iya kuqhutyelwa kuphela malunga ne-70% (engagcwali). Ngeli xesha, ishaja iya kuqhubeka ihlawula ibhetri kwi-voltage eqhubekayo, kwaye iyancipha ngokuthe ngcembe, xa ixabiso lingaphantsi kwe-0.1a kwaye i-voltage yebhethri iqhubeka nokunyuka, uya kuyeka ukutshaja.

4. Ukutshaja rhoqo ixesha elide ibhetri ye-lithium ion kufuneka igcinwe kwindawo epholileyo eyomileyo. Ibhetri egcweleyo iya konakaliswa, kwaye ibhetri enokwenziwa iya kutshatyalaliswa kwaye ilahlekelwe ngumsebenzi ngaphandle kombane.

Kwinkqubo egciniweyo, rhoqo kwiinyanga ezi-3 ukuya kwezi-6, ukugqiba umjikelo wokutshaja, kufuneka wenze umlinganiselo webhetri. Isiphelo: Ngophuhliso lwesayensi kunye nobuchwepheshe, iimveliso zebhetri ze-lithium-ion eziphezulu ziye zaba yimveliso ye-elektroniki ye-speed-speed. Ibhetri ye-lithium-ion ye-high-speed inokuhlawula amaxesha angama-300 ~ 500, ukuba idlulile le nombolo, ibhetri ayiyi kusetyenziswa, ngokuqinisekileyo, oku kubhekisela kuphela.

Ukuphakama okuphezulu kwebhetri ye-lithium-ion ayinanto yakwenza nenani lokutshaja, kwaye lihambelana nomjikelo wentlawulo kunye nokukhutshwa, oko kukuthi, inani lamaxesha ukusuka kwintlawulo ye-zero ukugqiba intlawulo. .