An ba da rahoton cewa, a farkon watan Agusta, sabuwar masana’antar kera motoci ta makamashi ta yi hira da shugaban BYD Wang Chuanfu a taron aikin injiniya na Hunan Shaoshan Sanji, wanda ya haifar da muhimman jaridun tsaro, gidajen yanar gizo da wakilai, kwararru, da labarai sama da dari a cikin mako guda kawai. Rahotannin kafafen yada labarai na gida da kuma daruruwan labarai sun ja hankalin manyan kasuwannin babban birnin kasar. Shin ƙarfin ƙarfin kuzari yana ƙaruwa da gaske? Shin lithium baƙin ƙarfe phosphate ko lithium baƙin ƙarfe manganese phosphate? Shin kayan za su canza? Saboda haka, kafofin watsa labaru sun yi hira da Dr. Weifeng Fan, darektan fasaha na Chengdu Xingneng New Materials Co., Ltd., Cibiyar Chengdu na Kimiyyar Halittu, Kwalejin Kimiyya ta kasar Sin.

Lithium iron phosphate is not a special case

sabuwar fasahar BYD ta lithium iron manganese phosphate baturi

Dr. Fan said that it is not lithium iron phosphate and other types of metal ions, compound phosphates, and fertilizers, ammonium dihydrogen phosphate, ammonium phosphate, etc.) are similar, but different solubility calculations, so someone It may be said that the use of lithium iron phosphate and phosphorus fertilizers, but in fact, the solubility of lithium iron phosphate is very poor and cannot release the effective phosphorus components in the soil.

Fan ya yi imanin cewa ƙungiyoyin phosphate suna cikin wani nau’in mahaɗan polyanionic (kayan polyanionic anode), saboda ƙungiyoyin phosphate suna da ƙarin ions oxygen da wuraren daidaitawa, kuma galibi suna iya ƙirƙirar tsarin polymer mai ƙarfi tare da ions ƙarfe na canzawa.

Polyanion babban bakan ne

sabuwar fasahar BYD ta lithium iron manganese phosphate baturi

Fan likitan ba shi da ƙimar kololuwa, M yana wakiltar baƙin ƙarfe na baya, manganese, cobalt, nickel, jan ƙarfe, chromium, kamar kowane nau’in ƙarfe, M ƙarfe ne mai tushe, tsarin sinadarai, amintaccen amfani da tashar Maris da tashar lithium ion azaman Lithium baturi Anode abu, amma daban-daban iya aiki, irin ƙarfin lantarki, da rabo na aiki, daban-daban rayuwa…

Phosphoric acid, lithium baƙin ƙarfe manganese ko lithium baƙin ƙarfe manganese, daidai?

Dr. Weifeng Fan ya yi imanin cewa kowane nau’i na take ba shi da mahimmanci. Makullin shine rabon ƙarfe da manganese. A halin yanzu, babu wata cikakkiyar yarjejeniya kan abubuwa guda uku masu kama da juna (532, 111, 811, da sauransu). A cikin wane yanayi ne rabon ƙarfe da manganese ya fi muhimmanci. Yayi kyau? Saboda kyakkyawan kwanciyar hankali da aikin sa, ainihin aikace-aikacen nan gaba na iya zama ƙarin phosphates hadaddun ƙarfe.

sabuwar fasahar BYD ta lithium iron manganese phosphate baturi

sabuwar fasahar BYD ta lithium iron manganese phosphate baturi

Is technical authenticity a fact?

Ƙimar ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙarfin lithium baƙin ƙarfe phosphate shine 170mAh / g, hanyar fitarwa shine 3.4V, kuma yawan kuzarin kayan shine 578Wh/kg. Ƙimar ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙarfin lithium manganese phosphate shine 171mAh / g, hanyar fitarwa shine 4.1V, kuma yawan ƙarfin kayan shine 701Wh / kg, wanda shine 21% mafi girma fiye da na farko.

According to Dr. Fan Weifeng, in the Chinese battery network, the energy density of existing lithium iron phosphate batteries is 90Wh/kg-130wh/kg. According to the 21% improvement in material energy density, even pure lithium manganese phosphate, the energy density can only reach About 150Wh/kg, the energy density of using lithium manganese phosphate battery can only reach below 150Wh/kg. Taking lithium iron phosphate battery as an example, if the hypothetical best strategy (150Wh/kg) is compared with the current worst strategy (90Wh/kg), the maximum improvement can be estimated to be 67%, but obviously this assumption can only be a hypothesis .