Otu esi emeziwanye nchekwa nke batrị lithium

Uru nke ụgbọ ala ume ọhụrụ bụ na ha dị obere carbon na mmekọrịta gburugburu ebe obibi karịa ụgbọ ala mmanụ ụgbọala. Ọ na-eji mmanụ ụgbọala na-adịghị ahụkebe dị ka isi iyi ike, dị ka batrị lithium, mmanụ hydrogen, wdg. Ngwa batrị lithium-ion dịkwa obosara nke ukwuu, ewezuga ụgbọ ala ume ọhụrụ, ekwentị mkpanaaka, laptọọpụ, PC mbadamba, ike mkpanaka, igwe eletrik. , ngwa eletriki, wdg.

Agbanyeghị, nchekwa nke batrị lithium-ion ekwesịghị ileda anya. Ọtụtụ ihe mberede na-egosi na mgbe ndị mmadụ na-akwụ ụgwọ n'ụzọ na-ezighị ezi, ma ọ bụ ọnọdụ okpomọkụ dị oke elu, ọ dị nnọọ mfe ịkpalite batrị lithium-ion ọkụ na-akpaghị aka, mgbawa, nke ghọworo ihe mgbu kasị ukwuu na mmepe nke batrị lithium-ion.

Ọ bụ ezie na akụrụngwa nke batrị lithium n'onwe ya na-ekpebi ọdịnihu ya "ọkụ na-agbawa agbawa", mana ọ gaghị ekwe omume kpamkpam ibelata ihe egwu na nchekwa. Site na ọganihu teknụzụ batrị na-aga n'ihu, ma ụlọ ọrụ ekwentị na ụlọ ọrụ ụgbọ ala ọhụrụ, site na usoro njikwa batrị nwere ezi uche na usoro nlekọta okpomọkụ, batrị ahụ ga-enwe ike hụ na nchekwa, ọ gaghị agbawa ma ọ bụ ihe ọkụ ọkụ na-akpaghị aka.

1.Mmelite nchekwa nke electrolyte

Enwere mmeghachi omume dị elu n'etiti electrolyte na ma electrodes dị mma na nke na-adịghị mma, karịsịa na okpomọkụ dị elu. Iji meziwanye nchekwa nke batrị, imeziwanye nchekwa nke electrolyte bụ otu n'ime ụzọ dị irè karị. Site n'ịgbakwunye ihe mgbakwunye na-arụ ọrụ, iji salts lithium ọhụrụ na iji ihe mgbaze ọhụrụ, enwere ike idozi ihe egwu nchekwa nke electrolyte nke ọma.

Dị ka ọrụ dị iche iche nke ihe mgbakwunye si dị, enwere ike kewaa ha n'ime ụdị ndị a: ihe mgbakwunye nchekwa nchekwa, ihe na-emepụta ihe nkiri, ihe nchebe cathode, ihe mgbakwunye nnu lithium, nkwalite nkwalite lithium, ihe mgbakwunye mmiri mgbochi corrosion na-anakọta, ihe mgbakwunye wettability. , wdg.

2. Meziwanye nchekwa nke ihe electrode

A na-ewere lithium iron phosphate na ternary composites dị ka ọnụ ala, "nchekwa dị oke mma" ihe cathode nwere ike iji ya mee ihe na ụlọ ọrụ ụgbọ ala eletrik. Maka ihe cathode, usoro a na-ejikarị eme ka nchekwa ya dịkwuo mma bụ mkpuchi mkpuchi, dị ka metal oxides n'elu ihe cathode, nwere ike igbochi kọntaktị kpọmkwem n'etiti ihe cathode na electrolyte, na-egbochi mgbanwe nke ihe onwunwe cathode, melite nhazi ya. nkwụsi ike, belata nsogbu nke cations na lattice, iji belata mmepụta okpomọkụ mmeghachi omume.

Ihe electrode na-adịghị mma, ebe ọ bụ na elu ya na-abụkarị akụkụ nke batrị lithium-ion nke na-enwekarị ike ịdaba na njedebe thermochemical na exotherm, na-eme ka nkwụsi ike nke okpomọkụ nke ihe nkiri SEI bụ isi ụzọ iji meziwanye nchekwa nke ihe na-adịghị mma. Enwere ike imeziwanye nkwụsi ike nke ihe anode site na oxidation na-adịghị ike, ntinye ígwè na metal oxide, polymer ma ọ bụ carbon cladding.

3. Melite nchekwa nchekwa nchekwa nke batrị

Na mgbakwunye na imeziwanye nchekwa nke ihe batrị, ọtụtụ usoro nchekwa nchekwa ejiri na batrị lithium-ion azụmahịa, dị ka ịtọ valvụ nchekwa batrị, fuses thermally soluble, jikọtara ihe ndị nwere ọnụọgụ ọnọdụ okpomọkụ dị mma n'usoro, na-eji diaphragms mechiri emechi, na-ebufe nchekwa pụrụ iche. sekit, na sistemụ njikwa batrị raara onwe ya nye, bụkwa ụzọ iji kwalite nchekwa.

Oge nzipu: Feb-14-2023