Ziziphi izizathu zokuqhuma kwebhetri ye-lithium-ion ye-18650?

2022/04/02

Umbhali :Iflowpower-UMboneleli weSikhululo saMandla esiphathwayo

Kukho ukuqhuma kwebhetri ye-lithium-ion eninzi ye-18650, kwaye kukho ezintathu ezibalulekileyo zokuqala apha. I-primation ezintathu eziphambili ze-18650 ibhetri ye-lithium-ion yaqhuma yi-1, kwaye ibhetri ye-lithium ion ye-18650 yayigqithise, oku kukuqhuma okuqhelekileyo. Iibhetri ze-lithium-ion azisebenzi ngaphakathi koluhlu lwamandla ombane oluchaziweyo, ngaphandle koko kuya kubakho ingozi yokhuseleko lokuqhuma.

Umzekelo, ibhetri ye-lithium ene-dimensional-dimensional 2.5V ~ 4.2.

2V; ferrite lithium intsimbi core ngokwesiqhelo 2.0V ~ 3.3.

65V. Xa ibhetri ye-lithium-ion ye-18650 ihlawuliswa, ukuhamba kwe-lithium ion ye-electrode efanelekileyo kwi-electrode engafanelekanga, efakwe kwisakhiwo se-mesh yezinto ezimbi ze-electrode, ukuba ibhetri ye-lithium ion ihlawuliswa kakhulu, kulula ukubangela i-electrode ye-lithium, kubangele i-lithium crystallization, ukubhoboza i-diaphragm, kuya kubangela isiphaluka esifutshane ngaphakathi kwebhetri, ngaloo ndlela kubangele ukuqhuma. Yingakho iibhetri ze-lithium-ion zihlawuliswa xa zitshaja, kwaye isiphaluka sokukhusela esigqithisiweyo sihlawulelwa ukuhlawula ibhetri ye-lithium ion.

I-lithium-ion ibhetri yokukhusela ibhetri iya kubeka iliso kwintambo nganye yombane we-lithium ion ibhetri yepakethe, ngaphezu kwe-voltage overcharge, i-lithium-ion ibhetri yokukhusela iplati yokukhusela iyanqunyulwa, kwaye ukusetyenziswa kweebhetri ze-lithium-ion kuya kukhuselwa. Ipakethi yebhetri ye-lithium ion, ukuba kukho ukuqhuma kwangaphambili, ubuninzi bemeko kukuba ibhetri ye-lithium ion ine-voltage ye-0V, okanye i-plate yokukhusela ayiqhelekanga, kwaye ibhetri ye-lithium ion ayikwazi ukugcinwa; Ngaba impazamo yokusebenzisa itshaja. Ngokomzekelo, i-36V ye-lithium-ion ibhetri pack, iintambo ezili-10 zibe yi-triendal lithium, ukuba i-voltage ye-serial ye-serial itshintsha kwi-0V, i-voltage yokutshaja i-42V yeshaja iya kuhlawula iintambo ezi-8 ezisele, umsebenzi weplate yokukhusela awuqhelekanga.

Iingcali azinakubonelelwa. 8 I-voltage efanayo yebhetri yentambo iya kuhlawuliswa kwi-5.25V okanye ngaphezulu (42V / 8 strings).

Oku kuya kubangela ukuba ibhetri ye-lithium ion ihlawuliswe kakhulu, ibangele ingozi yokuqhuma. Ukuba ishaja ayilunganga, ipakethe yebhetri ye-lithium ion ayihlawuliswa ngokuhambelana neshaja ekhethekileyo ekhankanyiweyo, kwaye izikhuseli zebhetri ze-lithium ion aziqhelekanga, kwaye ipakethe yebhetri ye-lithium ion ihlawuliswa kakhulu. Umzekelo, ipakethe yebhetri ye-lithium-ion ye-36V, umbane ophumayo wetshaja ezinikeleyo kufuneka ibe yi-42V, ukuba itshaja (i-voltage yokutshaja yi-84V), ipeni yokutshaja ye-84V ilayishwe kwi-36V ye-lithium ion pack yebhetri. ibhodi zonakaliswa lula, kwaye umsebenzi ngokulula ayisebenzi.

Ngeli xesha, ipakethe yebhetri ye-lithium-ion iya kuhlawulisa ngaphandle kokukhusela, i-voltage yebhetri yentambo nganye iya kuhlawuliswa kwi-8.4V okanye ngaphezulu (i-84V / 10 strings), i-voltage yentlawulo epheleleyo ye-lithium emithathu-dimensional yi-4.2V, i-8.

I-4 V 's ombane kwibhetri ye-lithium monomer emithathu-ntathu, iya kuba yingozi ngakumbi kwaye kulula ukubangela ukuqhuma. Ke, sebenzisa ibhetri ye-lithium-ion ngokuchanekileyo usebenzisa ipleyiti yokukhusela ibhetri ye-lithium-ion ngokuchanekileyo, ngokuchanekileyo usebenzisa ishaja yebhetri ye-lithium ion. 2.

Isiphaluka esifutshane se-18650 ibhetri ye-lithium-ion ifutshane, kubandakanywa iisekethe ezimfutshane zangaphakathi kunye neesekethe ezimfutshane zangaphandle, ziya kubangela ukuqhuma kweebhetri ze-18650. Kukho iimvelaphi ezininzi zesekethe emfutshane yangaphakathi, ingxaki yenkqubo yokucubungula, kwaye intsalela yangaphakathi iyintsalela. Kwinkqubo yokusebenzisa ibhetri ye-lithium-ion, i-electrode yangaphakathi ye-electrode negative short circuit yenzeke, ngaloo ndlela ibangele ukuqhuma.

Esinye isizathu kukuba i-acupuncture yangaphandle okanye i-extrusion ibangela isiphaluka esifutshane sezinto zangaphakathi, ezibangela umlilo okanye ukuqhuma. I-3, ikhefu lobushushu obuphezulu, ukuba iqondo lokushisa liphezulu kakhulu, liya kubangela ukuqhuma kwebhetri ye-lithium ion ye-18650. Ngaphantsi kweemeko eziqhelekileyo zebhetri ye-lithium, uluhlu lweqondo lokushisa luhlawuliswa i-0 ukuya kwi-45 ¡ã C; ukukhupha -20 ~ 65 ¡ã C; ugcino 0 ukuya 45 ¡ã C.

Isitya sokukhusela ibhetri ye-lithium-ion ngokuqhelekileyo intlawulo yebhetri emiselweyo kunye nokushisa okuphezulu kwe-50 ¡ã C; ukukhupha ukushisa okuphezulu ngu-70 ¡ã C. Ukuba akukho khuseleko oluphezulu lweqondo lokushisa, ibhetri ye-lithium iyaqhubeka nokukhupha okanye ukugcina, okuya kubangela ukuqhuma kombane we-lithium. Izinto zangaphakathi zangaphakathi zombane we-lithium ziya kuhlahloka ngaphezu kwe-120 ¡ã C, i-diaphragm yezinto zangaphakathi zebhetri ye-lithium, i-diaphragm yangaphakathi yebhetri ye-lithium-ion ngokubanzi, kwaye i-diaphragm ye-120 ¡ã C iya kuncipha. , i-diaphragm, njengokunciphisa, izinto ezintle kunye nezingalunganga Ipeni iya kuchukumisa isiphaluka esifutshane, kwaye isiphaluka esifutshane siya kubangela ukushisa okuphezulu, kwaye i-valve yokukhusela ibhetri iya kubangela ukuba i-valve yokukhusela ibhetri ivule igesi yokukhupha ibangela ukunkqonkqoza okanye ukuphuma. .

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