He aha nga tikanga hei whakapai ake i te haumaru o te pākahiko?

Awdur: Iflowpower - Proveedor de centrales eléctricas portátiles

1. Whakamahia he hiko hiko hiko hiko lithium i tenei wa ma te whakamahi i te warowaiha hei whakarewa, ka taea e te warowairangi raina te whakapai ake i te utu me te tuku i te kaha o te pākahiko, engari he iti to ratou tohu uira, i te iti ake o te pāmahana Ka uira, a ko te whakarewa fluoro te tikanga he teitei ake te tohu hiko, kaore ranei he rama, na reira ka whakamahia te whakarewa fluoro hei pehi i te wera o te hiko. Ko nga whakarewa fluoride e akohia ana inaianei ko te fluoroate me te fluoroethyl ether.

Ko te electrolyte retardant mura he electrolyte mahi e whiwhi ana te mahi mura mura o aua electrolyte ma te taapiri i te taapiri mura ki roto i te electrolyte tikanga. I tenei wa kei te whakatauhia e te electrolyte mura-muri nga tikanga tino ohanga me te whai hua mo te haumaru pākahiko lithium, ina koa kei raro i te umanga. Ma te whakamahi i nga electrolytes totoka, hei utu i nga electrolytes wai pararopi, ka pai te whakapai ake i te haumaru o nga pākahiko lithium.

Kei roto i nga electrolytes totoka nga electrolytes totoka polymer me nga electrolytes totoka parakore. Ko te polymer electrolyte, ina koa ko te gel-momo polymer electrolyte, he mea hanga nui i roto i te pākahiko lithium arumoni, engari ko te momo gel-momo polymer electrolyte he tino-motuhake polymer electrolyte me te taupatupatu wai. Ko te mutunga, he iti rawa te whakapai ake i te haumaru o te pākahiko.

Na te electrolyte o te polymerization-motu maroke, na te mea ehara i te rite ki te momo gel-momo polymer electrolyte, he pai ake te haumaru i runga i te rerenga, te pehanga kohu me te wera. I tenei wa, kaore e tutuki i te hiko whakahiato o naianei nga whakaritenga tono o te pākahiko lithium polymer, a ko etahi atu rangahau e tika ana kia whakamahia nuitia ki nga pākahiko rokiroki polymer lithium. Ko te electrolyte polymer e pa ana ki te waahanga, he pai ake te haumaru o te electrolyte totoka pararopi, kaore he wawaotanga, kaore he wera, karekau he raruraru turuturu.

I tua atu, he tiketike te kaha miihini o te electrolyte totoka pararopi, he tino teitei ake te pāmahana atete-wera i tera o te electrolyte wai me te polymer organic, i whakanuia te awhe pāmahana whakahaere o te pākahiko; Ko nga mea pararopi ka hangaia hei kiriata, ka kaha ake ki te whakatutuki i te iti o te pākahiko lithium, a ko tenei momo pākahiko he Ultra-roa te roa o te rokiroki ka taea te whanui te waahanga tono o nga pākahiko lithium o naianei. 2. Te whakapai ake i te raruraru haumaru o te thermostability o te rauemi electrode tika i te electrolyte haumaru, engari i te take pakiaka, he mea na te pākahiko ake he kore tiketike, te takanga o te waiariki i waho o te mana.

I tua atu i te pumau o te waiariki o te electrolyte, ko te pumau o te waiariki o te electrolyte tetahi o nga take tino nui, na te mea ko te pumau o te waiariki o te taputapu hiko he waahanga nui hoki hei whakapai ake i te haumaru o te pākahiko, engari ko te electrode i whakahuahia i konei Ko te pumau o te waiariki o nga rauemi ehara i te mea ko tana ake whakamaarama wera anake, engari kei roto ano hoki te pumau o te waiariki o te rauemi electrolyte. I te nuinga o te wa, ka whakatauhia te pumau o te waiariki o te taonga hiko kino e te mahi o te hanganga rauemi me te utu hiko kino. Mo nga mea waro, he mea waro porowhita, penei i te moroiti waro takawaenga (MCMB), he iti ake te owehenga, he teitei ake te utu me te tukunga, no reira he iti ake te ahua o te utu, a ka whakatauritea te pumau o te waiariki.

He pai, he haumaru teitei. Ko te Li4Ti5O12 o te hanganga spinel he pai ake i te pumau o te hanganga o te graphite laminated, a he nui ake te utu o te utu me te whakahekenga, no reira he pai ake te pumau o te waiariki me te haumaru ake. Na reira, MCMB Li4Ti5o12 ranei te nuinga o whakamahia i roto i te mana lithium-katote pākahiko o whakaritenga haumaru ki te whakakapi graphite noa rite te electrode kino.

I tua atu i te rauemi ake, ko te whakamaarama o te waiariki o te taonga hiko kino he nui ake te awangawanga mo te pumau o te waiariki o te membrane electrolyte totoka (SEI) o te atanga electrolyte kino o te atanga electrolyte, he maha nga wa e whakamahia ana e nga mea ano, inaa ko te graphite. Whakaarohia koinei te waahi tuatahi mo te mate o te wera. E rua nga huarahi nui hei whakapai ake i te whakamaarama wera o te kiriata SEI: ko tetahi ko te paninga mata o te papanga hiko kino, penei i te paninga i te waro amorphous, i te paparanga whakarewa ranei i runga i te mata o te graphite; Ko tetahi atu ko te taapiri i nga taapiri hanga kiriata i roto i te electrolyte, i roto i te pākahiko I te wa o te whakahohenga, ka hangaia he kiriata SEI he pumau o te rauemi hiko, he pai mo te pai ake o te waiariki.