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764586860新蟲 (初入文壇)
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[交流]
JMC上的G.Ceder組的混合聚陰離子鋰電池正極 已有1人參與
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MIT的G.Ceder通過計(jì)算預(yù)測(cè)混合聚陰離子型鋰鹽和鈉鹽的穩(wěn)定性,以及電壓容量和電化學(xué)穩(wěn)定性。。 The discovery of new chemistries outperforming current lithium intercalation cathodes is of major technological importance. In this context, polyanionic systems with the potential to exchange multiple electrons per transition metal are particularly interesting because they could combine the safety of polyanion systems with higher specific energy. In this paper, we report on a series of new mixed polyanions compounds of formula Ax M(YO3)(XO4 ) (with A :Na, Li; X:Si, As, P; Y :C, B; M:a redox active metal; and x ! 0 to 3) identified by high-throughput ab initio computing. The computed stability of both lithium and sodium-based compounds is analyzed along with the voltage, specific energy and energy density of the lithium-based compounds. This analysis suggests several novel carbonophosphates and carbonosilicates as potential high capacity (>200 mAh/g) and specific energy (>700 Wh/kg) cathode materials for lithium-ion batteries. |
電化學(xué)-電池材料 | 聚合物鋰離子電池正極材料 | 鋰電資源共享 |
鐵桿木蟲 (知名作家)

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