Ụgbọ ala electr batrị na ngwugwu batrị Liion

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Usoro slurry ọdịnala ugbu a bụ:

(1) Efrata:

1. Nkwadebe ngwọta:

a) Ngwakọta ngwakọta na nha nke PVDF (ma ọ bụ CMC) na ihe mgbaze NMP (ma ọ bụ mmiri deionized);

b) Oge na-akpali akpali, na-emegharị ugboro ugboro na oge nke ngwọta (na elu okpomọkụ nke ngwọta);

c) Mgbe edozichara ngwọta ahụ, lelee ngwọta: viscosity (nnwale), ogo nke solubility (nlele anya) na oge nchekwa;

d) Eletrọd na-adịghị mma: SBR + CMC ngwọta, na-akpali oge na ugboro ugboro.

2. Ihe na-arụ ọrụ:

a) Nyochaa ma ngwakọta ngwakọta na ọnụọgụ dị mma n'oge a na-atụle na ịgwakọta;

b) Ngwunye bọọlụ: oge ​​igwe nri nke electrodes dị mma na nke na-adịghị mma;oke nke agate beads na ngwakọta na igwe igwe bọọlụ;oke nke nnukwu bọọlụ na obere bọọlụ na bọọlụ agate;

c) Nri: nhazi nke mmiri ọkụ na oge;nwalee okpomọkụ mgbe jụrụ oyi mgbe mmiri.

d) Ịgwakọta na ịmegharị ihe na-arụ ọrụ na ngwọta: usoro mkpali, oge na-akpali akpali na ugboro ole.

e) Sieve: gafere 100 ntupu (ma ọ bụ 150 ntupu) molekụla sieve.

f) Nlele na nyocha:

Mee ule ndị a na slurry na ngwakọta: ọdịnaya siri ike, viscosity, mma ngwakọta, njupụta mgbata, njupụta slurry.

Na mgbakwunye na mmepụta doro anya nke usoro ọdịnala, ọ dịkwa mkpa ịghọta ụkpụrụ bụ isi nke batrị lithium batrị.

Theory Colloid

 

Isi mmetụta nke na-eme ka agglomeration nke colloidal ahụ bụ ike van der Waals n'etiti ahụ.Iji mee ka nkwụsi ike nke mkpụrụ ndụ colloidal dịkwuo elu, e nwere ụzọ abụọ.Otu bụ ime ka electrostatic repulsion dị n'etiti colloidal particles, na nke ọzọ bụ ịmepụta ohere n'etiti powders.Iji gbochie agglomeration nke powders na ụzọ abụọ a.

Usoro colloidal kachasị mfe bụ nke a na-agbasasị agbasa na nke a na-agbasasị agbasa, ebe ọnụ ọgụgụ nke agbasa agbasa sitere na 10-9 ruo 10-6m.Ihe ndị dị na colloid ga-enwerịrị ike ịgbasa n'ime usoro ahụ.Dị ka ihe mgbaze dị iche iche na usoro gbasasịrị, enwere ike ịmepụta ọtụtụ ụdị colloidal dị iche iche.Dịka ọmụmaatụ, alụlụ ọgụ bụ ikuku ikuku nke na-agbasasị ụmụ irighiri mmiri n'ime gas, na ntacha eze bụ sol nke a na-agbasasị akụkụ polymer siri ike n'ime mmiri mmiri.

 

Ngwa nke colloid na-aba ụba na ndụ, na ihe anụ ahụ nke colloids kwesịrị ịdị iche dabere na oge ịgbasa na mgbasa ozi.N'ileba anya na colloid site na nlele anya microscopic, ihe ndị na-emepụta colloidal adịghị na ọnọdụ mgbe niile, ma na-agagharị na-enweghị usoro na ọkara, nke bụ ihe anyị na-akpọ Brownian motion (Brownian motion).N'elu efu zuru oke, ụmụ irighiri ihe colloidal ga-eme mmegharị Brownian n'ihi mmegharị ọkụ.Nke a bụ ike nke microscopic colloid.Colloidal ahụ na-agbakọta n'ihi mmegharị Brownian, nke bụ ohere maka nchịkọta, ebe ihe ndị na-emepụta colloidal nọ na ọnọdụ thermodynamically na-akwụghị ụgwọ, ya mere ike mmekọrịta dị n'etiti ahụ bụ otu n'ime isi ihe maka mgbasa.


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  • Oge nzipu: Mee-14-2021

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