Otu esi emeziwanye arụmọrụ batrị lithium ion? Kedu ka esi hụ ka ikpe a ga-esi kwuo!

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - Proveïdor de centrals portàtils

Batrị lithium ion na lithium iron phosphate bụ nchekwa dị elu, uru nke ndụ ogologo oge, bụ batrị bụ isi nke ụgbọ ala eletrik. Batrị ahụ ga-ebelata ndụ ya ogologo oge, nyochaa mfu ikike nke batrị lithium ion batrị n&39;oge usoro nchekwa okpomọkụ dị elu, nke na-enyere aka ịghọta ọnọdụ ọdịda nke batrị lithium-ion, ma melite arụmọrụ batrị. Ọ bụ ezie na a na-amụ ọtụtụ akwụkwọ site na lithium ion batrị ike ọnwụ, nke mbụ bụ na-ekwu na electrolyte Mbelata analysis, uto ndim nke SEI membrane na polarization mere batrị, ma ugbu a nnyocha na-ejedebeghị na bọtịnụ (Hem) Obere nnyocha na ọdịda nke azụmahịa lithium-ion batrị ( batrị zuru ezu).

Ningde Times CATL na-eji azụmahịa ya dabere na batrị lithium-ion dị ka ihe nlele, na-enyocha ihe mbụ sitere na ike, 60 ¡ã C nchekwa ikike ọnwụ. Site na njiri mara anụ ahụ na nleba anya arụmọrụ elektrọnik, usoro nke imebi ikike batrị site na batrị na ọkwa ọkwa osisi bara ezigbo uru inyocha! 1. Nnwale usoro ule site na iji CATL ahaziri ikike nke batrị lithium-ion batrị 86AH.

Batrị bụ ihe cathode, graphite bụ ihe anode, na-eji polyethylene (PE) diaphragm na carbonate otu LiPF6 electrolyte. Họrọ batrị 20 dị nso na otu batch na ịrụ ọrụ eletrik iji chekwaa, chọpụta ọrụ eletriki nke batrị ahụ. A na-echekwa batrị 100% SOC 60 ¡ã C n&39;ime pịa n&39;etiti 2.

50 ruo 3.65V, mwepu nke nkwalite 0.5C - okirikiri chaja.

Mgbe ahụ, nọgide na-echekwa ya na 60 ¡ã C maka 60 ¡ã C. Otu a ugboro ugboro, na-edekọ usoro mbelata ikike nke batrị. N&39;oge nchọpụta ikike ọ bụla, a na-achọpụta nguzogide n&39;ime DC (DCR) nke batrị 5C30S.

Were oge nchekwa dị iche iche yana n&39;ọnọdụ ewepụrụ kpamkpam (100% DOD), kewaa. Jiri mikroskopu eletrọn na-enyocha ikuku ikuku iji hụ ihe njiri mara pola, jiri mpaghara elu akọwapụtara nke ọma karịa ire ere n&39;elu. N&39;ime igbe uwe aka, a na-eji teepu translucent mechie mpempe akwụkwọ electrode ahụ, a na-eji ngwá ọrụ diffraction X-ray mejupụtara ihe electrode.

The pola ibe mgbe mgbasa nke batrị bụ electrode na-arụ ọrụ, na lithium mpempe akwụkwọ bụ counter electrode, na-onwem n&39;ime a CR2032 ikechi batrị, na electrochemical Njirimara nke yin na usụhọde efere. Electrochemical impedance ụdịdị dị iche iche nke batrị ntanye nwere ọrụ electrochemical. Ọdịnaya elementrị nke mpempe elektrọd na-eji ihe inductive njikọ plasma emitting spectrometer (ICP-OES).

2. N&39;ihi nke a, mkparịta ụka 2.1 nbibi arụmọrụ batrị na-ana 0 ma wepụta ya.

02C agbaji. Na fig. 1 (c), ion lithium na-agbakwunyere n&39;ọtụtụ nyiwe nke ion lithium kpatara na eriri voltaji batrị, na-egosi na 0.

02c agbakwunyere mmụba maka ion lithium. Ntụrụndụ nke ihe owuwu graphite na usoro ịhapụ oge zuru oke nwere ike iwepụ nsonaazụ polarization na okirikiri. Tụnyere 0.

5C na-ebuwanye ibu, ọ bụ naanị 0.8% (90.7% vs.

91.4%) na 1.4% (85.

8% vs.87.3%).

Ya mere, ike batrị attenuation kpatara site na ogologo oge nchekwa okpomọkụ dị elu bụ mbelata ikike a na-apụghị ịgbanwe agbanwe. Na mgbakwunye, FIG. 1 (a) na-egosi na njupụta nke ike nke batrị abawanyela na oge nchekwa, nke na-egosikwa na n&39;ime polarization nke batrị abụghị ihe mbụ dị mkpa kpatara site na enweghị mmasị nke ike batrị nchekwa kalenda.

2.2 Igwe attenuation ikike batrị na-emebi emebi iji mebie ikike batrị attenuation mgbọrọgwụ, batrị nchekwa okpomọkụ dị elu na-ana 100% SOC ma ọ bụ wepụta ya na 100% DOD mgbe nkwalite 1C gasịrị. Mebie okporo osisi a gbasasịrị iji nyochaa mmetụta nke nchekwa nchekwa dị elu na nhazi, ihe mejupụtara elemental na njirimara electrochemical nke yin na ihe na-arụ ọrụ dị ala.

2.2.1 LIFEPO4 n&39;ime omimi nke nhichapụ miri emi ga-apụta dị nso na map FEPO4XRD, ebe ụdịdị LIFEPO4XRD dị nso na ụdịdị Lifepo4XRD dị na LIFEPO4 nke omimi.

N&39;otu oge ahụ, a na-enwe usoro lithium na lithium n&39;ime oghere LiFePO4 zuru oke, na ọdịnaya lithium-phase na-abawanye na oge nchekwa, na-egosi na ọnụ ọgụgụ nke ion lithium nwere ike itinye FEPO4 lattice bụ redu.