A kọrọ na na mbido August, ụlọ ọrụ ụgbọ ala ọhụrụ ahụ gbara ajụjụ ọnụ onye isi oche BYD Wang Chuanfu na Hunan Shaoshan Sanji Engineering Work Conference, nke kpatara akwụkwọ akụkọ nchekwa dị mkpa, weebụsaịtị na ndị nnọchi anya, ndị ọkachamara, na ihe karịrị otu narị akụkọ n’ime naanị otu izu. Akụkọ mgbasa ozi ụlọ na ọtụtụ narị akụkọ adọtawokwa mmasị dị ukwuu site na ahịa isi obodo. Njupụta ume na-abawanye n’ezie? Ọ bụ lithium iron phosphate ma ọ bụ lithium iron manganese phosphate? Ihe onwunwe ọ̀ ga-agbanwe? N’ihi nke a, ndị mgbasa ozi gbara ajụjụ ọnụ Dr. Weifeng Fan, onye na-ahụ maka nkà na ụzụ Chengdu Xingneng New Materials Co., Ltd., Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences.

Lithium iron phosphate abụghị ihe pụrụ iche

ekpughere batrị lithium iron manganese phosphate teknụzụ ọhụrụ BYD

Dr. Fan kwuru na ọ bụghị lithium iron phosphate na ụdị ndị ọzọ nke metal ion, compound phosphates, na fatịlaịza, ammonium dihydrogen phosphate, ammonium phosphate, wdg) yiri, ma dị iche iche solubility mgbako, otú onye E nwere ike ikwu na ndị iji lithium iron phosphate na phosphorus fatịlaịza, ma n’ezie, solubility nke lithium iron phosphate adịghị mma na enweghị ike ịhapụ ihe ndị nwere phosphorus dị irè n’ime ala.

Fan na-ekwere na phosphate dị iche iche bụ nke ọzọ ụdị polyanionic ogige (polyanionic anode ihe), n’ihi na phosphate dị iche iche nwere ọzọ oxygen ion na nhazi ohere, na mgbe mgbe na-etolite a stric polymer Ọdịdị na mgbanwe metal ion.

Polyanion bụ nnukwu ụdịdị dị iche iche

ekpughere batrị lithium iron manganese phosphate teknụzụ ọhụrụ BYD

Onye na-akwado dọkịta enweghị ọnụ ahịa kachasị elu, M na-anọchi anya ígwè ọzọ nke gara aga, manganese, cobalt, nickel, ọla kọpa, chromium, dị ka ihe ọ bụla metal element, M bụ isi metal, chemical Ọdịdị, dị mma iji March na lithium ion channel dị ka a. Lithium batrị Anode ihe, mana ikike dị iche iche, voltaji, na oke arụmọrụ, ndụ dị iche iche…

Phosphoric acid, lithium iron manganese ma ọ bụ lithium iron manganese, nri?

Dr. Weifeng Fan kwenyere na ụdị aha ọ bụla adịghị mkpa. Isi ihe bụ nha nke ígwè na manganese. Ka ọ dị ugbu a, enweghị nkwenye doro anya na ihe atọ yiri ya (532, 111, 811, wdg). N’okpuru ọnọdụ ndị dị n’ókè nke ígwè na manganese kacha mkpa. Ọ dị mma? N’ihi nkwụsi ike ya dị mma na arụmọrụ ya, ezigbo ngwa n’ọdịnihu nwere ike ịbụ ihe mgbagwoju anya phosphates.

ekpughere batrị lithium iron manganese phosphate teknụzụ ọhụrụ BYD

ekpughere batrị lithium iron manganese phosphate teknụzụ ọhụrụ BYD

Eziokwu teknuzu ọ̀ bụ eziokwu?

Ikike a kapịrị ọnụ nke lithium iron phosphate bụ 170mAh / g, ụzọ mgbapụta bụ 3.4V, na njupụta ike nke ihe ahụ bụ 578Wh / kg. Ikike a kapịrị ọnụ nke lithium manganese phosphate bụ 171mAh / g, ụzọ mgbapụta bụ 4.1V, na njupụta ike ihe bụ 701Wh / kg, nke bụ 21% dị elu karịa nke mbụ.

Dị ka Dr. Fan Weifeng si kwuo, na netwọk batrị ndị China, njupụta ike nke batrị lithium iron phosphate dị ugbu a bụ 90Wh/kg-130wh/kg. Dabere na mmụba 21% na njupụta ike ihe, ọbụlagodi lithium manganese phosphate dị ọcha, njupụta ike nwere ike iru naanị 150Wh / kg, njupụta ike nke iji lithium manganese phosphate batrị nwere ike iru n’okpuru 150Wh / kg. Na-ewere batrị lithium iron phosphate dị ka ihe atụ, ma ọ bụrụ na atụnyere atụmatụ kachasị mma (150Wh / kg) na usoro kachasị njọ ugbu a (90Wh / kg), enwere ike ime atụmatụ ọganihu kachasị na 67%, ma o doro anya na echiche a nwere ike ịbụ naanị. echiche .