Ngwakọta batrị lithium-ion

Nhazi na imegharị batrị lithium-ion

Nkebatrị lithium-ionbụ nke eletrolyte, separator, cathode na anode na ikpe ahụ.

Ihe electrolytena batrị lithium-ion nwere ike ịbụ gel ma ọ bụ polymer, ma ọ bụ ngwakọta nke gel na polymer.

Eletrọt dị na batrị Li-ion na-arụ ọrụ dị ka ihe na-ebufe ion na batrị.Ọ na-enwekarị nnu lithium na ihe mgbaze organic.Electrolyte na-arụ ọrụ dị mkpa na njem ion n'etiti electrodes dị mma na nke na-adịghị mma nke batrị lithium-ion, na-ahụ na batrị nwere ike nweta nnukwu voltaji na njupụta ume dị elu.Ihe mejupụtara electrolyte n'ozuzu bụ ihe mgbaze organic na-adị ọcha, lithium electrolyte salts na ihe mgbakwunye dị mkpa ejiri nlezianya jikọta ya na oke n'okpuru ọnọdụ akọwapụtara.

Ihe nke cathodeụdị batrị lithium-ion:

• LiCoO2
• Li2MnO3
• LiFePO4
• NCM
• NCA

 Ngwa cathode nwere ihe karịrị 30% akwụ ụgwọ nke batrị dum.

Ihe anodenke batrị lithium-ion nwere

Mgbe ahụ, anode nke batrị lithium-ion nwere ihe dịka pasent 5-10 nke batrị dum.Ihe anode sitere na carbon bụ ihe anode a na-ejikarị eme ihe maka batrị lithium-ion.E jiri ya tụnyere metal lithium anode omenala, ọ nwere nchekwa dị elu na nkwụsi ike.Ihe anode nke sitere na carbon sitere na graphite eke na nke arụrụ arụ, eriri carbon na ihe ndị ọzọ.N'ime ha, graphite bụ ihe bụ isi, nke nwere ebe dị elu dị elu na ebe eletriki eletrik, na ihe carbon nwekwara ezigbo nkwụsi ike na recycability.Otú ọ dị, ike nke carbon-based ọjọọ electrode ihe dịtụ ala, nke na-enweghị ike izute chọrọ nke ụfọdụ ngwa maka elu ike.Ya mere, e nwere ugbu a ụfọdụ nnyocha na ọhụrụ carbon ihe na ihe mejupụtara, na-atụ anya n'ihu imeziwanye ikike na okirikiri ndụ nke carbon dabeere na-adịghị mma electrode ihe.

Ọ ka nwere silicon-carbon negtive electrode ihe.Silicon (Si) ihe: Tụnyere na omenala carbon ọjọọ electrodes, silicon ọjọọ electrodes nwere elu kpọmkwem ikike na njupụta ume.Otú ọ dị, n'ihi nnukwu mgbasawanye nke ihe onwunwe silicon, ọ dị mfe ime ka ụda olu nke electrode dị mkpụmkpụ, si otú a na-ebelata ndụ batrị.

Onye nkewanke batrị lithium-ion bụ akụkụ dị mkpa nke ịhụ na arụmọrụ batrị na nchekwa.Isi ọrụ nke onye na-ekewapụta bụ ikewapụ electrodes dị mma na nke na-adịghị mma, ma n'otu oge ahụ, ọ nwekwara ike ịmepụta ọwa maka ion ije ma nọgide na-enwe electrolyte dị mkpa.A na-ewebata arụmọrụ yana ihe ndị metụtara ya nke nkewa batrị lithium-ion dị ka ndị a:

1. Nkwụsi ike nke kemịkalụ: diaphragm kwesịrị inwe nkwụsi ike kemịkalụ dị mma, nguzogide corrosion dị mma na nguzogide ịka nká n'okpuru ọnọdụ ihe mgbaze organic, ma nwee ike ịnọgide na-arụ ọrụ kwụsiri ike n'okpuru ọnọdụ siri ike dị ka oke okpomọkụ na iru mmiri dị elu.

2. Mechanical ike: Onye na-ekewapụ kwesịrị inwe ike ọrụ zuru ezu na ngbanwe iji hụ na ike nkwụsị zuru ezu ma na-eyi nguzogide iji gbochie mmebi n'oge mgbakọ ma ọ bụ ojiji.

3. Ionic conductivity: N'okpuru organic electrolyte usoro, ionic conductivity dị ala karịa nke aqueous electrolyte usoro, ya mere, separator kwesịrị inwe àgwà nke ala nguzogide na elu ionic conductivity.N'otu oge ahụ, iji belata nguzogide ahụ, ọkpụkpụ nke onye na-ekewapụ kwesịrị ịdị mkpa dị ka o kwere mee iji mee ka mpaghara electrode buru ibu dị ka o kwere mee.

4. Nkwụsi ike nke okpomọkụ: Mgbe ihe na-adịghị mma ma ọ bụ ọdịda dị ka nkwụghachi ụgwọ, nkwụsịtụ, na obere sekit na-eme n'oge ọrụ batrị, onye nkewa ga-enwerịrị ezigbo nkwụsi ike nke okpomọkụ.N'otu ọnọdụ okpomọkụ, diaphragm kwesịrị ịdị nro ma ọ bụ gbazee, si otú ahụ gbochie sekit dị n'ime batrị ma gbochie ihe mberede nchekwa batrị.

5. Okpokoro wetting zuru oke na njikwa pore: Ọdịdị nke pore na mkpuchi elu nke onye na-ekewapụ kwesịrị inwe njikwa wetting zuru ezu iji hụ na onye na-ekewapụ, si otú ahụ na-emeziwanye ike na ndụ ndụ batrị.N'ikwu okwu n'ozuzu, polyethylene flake (PP) na polyethylene flake (PE) microporous diaphragms bụ ihe diaphragm na-emekarị ugbu a, ọnụahịa ahụ dịkwa ọnụ ala.Ma e nwere ihe ndị ọzọ na-ekesa batrị lithium-ion, dị ka polyester, nke na-arụ ọrụ nke ọma, mana ọnụahịa dị elu.