Iji nweta chaja ngwa ngwa, batrị ahụ, onye na-ebu ihe kacha mkpa na usoro nchaji, dịkwa mkpa ka edozi ya.Ịchaji batrị ngwa ngwa na-adabere na nchaji na mwepụ nke batrị ahụ.Enwere isi ihe atọ kpatara imetụta mmụba nchaji: ihe elektrọd, ike ịchaji ikpo ọkụ na ọkụ batrị.Maka ụlọ ọrụ batrị, ike ịchaji ikpo ọkụ bụ ihe ebumnobi, na ihe electrode na njikwa okpomọkụ bụ ebe ụlọ ọrụ batrị nwere ike ime mgbanwe.
Na njikọ batrị ike, ike ịchaji ngwa ngwa nke batrị na-adabere n'ọtụtụ ikike dị ka ngwa ngwa lithium na-etinye ike nke electrode na-adịghị mma, conductivity nke electrolyte, na ikike njikwa okpomọkụ nke usoro batrị.
Mgbe ị na-agbaji ngwa ngwa, ion lithium kwesịrị ka ọ dị ngwa ngwa ma tinye ya ozugbo n'ime electrode adịghị mma.Nke a na-ama aka ike nke electrodes na-adịghị mma ịnweta ion lithium ngwa ngwa.Ọ bụrụ na electrode na-adịghị mma enweghị ikike itinye lithium ọsọ ọsọ, mmiri ozuzo lithium ma ọ bụ ọbụna lithium dendrite ga-eme, nke ga-eme ka attenuation na-enweghị ike ịgbanwe nke ikike batrị ma belata ndụ ọrụ.Na mgbakwunye, electrolyte na-achọkwa conductivity dị elu ma na-achọ nguzogide okpomọkụ dị elu, ọkụ na-ere ọkụ na ihe mgbochi.N'aka nke ọzọ, nchaji ngwa ngwa nke ike dị elu ga-eweta mmụba dị ukwuu na okpomọkụ, na njikwa okpomọkụ nke ngwugwu batrị dị elu dị oke mkpa.
N'ikwu okwu n'ozuzu, na nhazi nchekwa nke mkpọ batrị, enwere ike ime nchedo mgbasa ọkụ site na itinye ihe mkpuchi ọkụ na-arụ ọrụ mkpuchi ọkụ dị elu, dị ka paịlị mkpuchi seramiiki na bọọdụ mica.Otú ọ dị, na mgbakwunye na nchebe okpomọkụ na-agafe agafe, ngwọta nchebe ọkụ na-arụ ọrụ dịkwa oke mkpa.Na Shanghai Auto Show, dị iche iche ike batrị ụlọ ọrụ nwekwara "gosikwara ha nkà" gburugburu ihe ọhụrụ ihe na dum ngwugwu okpomọkụ management.
Na mbụ, teknụzụ nchaji ngwa ngwa n'oge Ningde kpuchiri netwọọkụ eletrọnịkị, mgbanaka ion ngwa ngwa, graphite isotropic, superconducting electrolytes, diaphragms dị elu, electrodes multi-gradient, ntị multipolar, nlele anya anode, wdg.
Teknụzụ Anotropic na-enye ohere itinye ion lithium na ọwa graphite ogo 360 iji meziwanye ọsọ nchaji.Nleba anya nke Anode nwere ike ịhazigharị chaja ugbu a ozugbo, ka batrị wee nwee ike ibuli ikike ịchaji ya n'ime oke nchekwa na-enweghị mmeghachi omume nyocha nke lithium, wee nweta nguzozi n'etiti oke chaja ọsọ na nchekwa.Batrị ternary Kirin na-anabata nnukwu nickel cathode + silicon electrode electrode system na-adịghị mma, yana njupụta ike ruru 255Wh / kg, na-akwado mmalite ọkụ ọkụ nkeji 5 nkeji yana 10min na-ebu 80%.Otú ọ dị, n'oge usoro nchaji na mwepụ, mmụba olu nke silicon nwere ike ịdị elu dị ka 400%, ihe na-arụ ọrụ na-adịkwa mfe ịpụpụ na efere polar, na-eme ka ike gwụ ngwa ngwa ma na-akpụ akpụkpọ anụ SEI na-ejighị n'aka.Ya mere, ihe ndị na-eduzi ihe na oge Ningde na-eji carbon nanotubes nwere otu mgbidi na dayameta nke 1.5 ~ 2 nanotubes, nke na-ejikọta ya na silicon anodes ma nwee netwọk mmekọrịta zuru oke.Ọbụna ma ọ bụrụ na ihe silicon anode ahụ na-agbasawanye na olu wee malite ịpụta mgbawa, ha ka nwere ike ịnọgide na-enwe njikọ dị mma site na otu carbon nanotubes nwere mgbidi.Na mgbakwunye, electrolyte nke Kirin batrị na-anabata LiFSI ma jiri mgbakwunye FEC mepụta lithium fluoride na electrode na-adịghị mma.Radius ion dị ntakịrị, nke nwere ike ịrụzi mgbape na oge.N'ihe gbasara njikwa okpomọkụ, batrị Kirin na-ejikọta sistemu jụrụ oyi na ihe mkpuchi ọkụ n'ime sanwichi na-agbanwe agbanwe na-arụ ọrụ n'etiti sel.E jiri ya tụnyere atụmatụ efere ọdịnala nke jụrụ oyi nke edobere n'elu cell, ebe a na-ebufe okpomọkụ ejirila okpukpu anọ.N'ihi nnukwu ebe jụrụ oyi, arụ ọrụ njikwa okpomọkụ nke cell ejirila 50% mụbaa.Efere ntụ oyi kwụ ọtọ na-emepụta oghere ikewapụ kehoraizin.Enwere akwụkwọ nkwụghachi ụgwọ ịgbasa + adiabatic airgel n'etiti sel ogologo ogologo, nke na-eme ka ọkụ ahụ dị nke ọma iji nweta “efu thermal runaway”.
Oge nzipu: Jun-26-2023