Toward ambient temperature operation with all-solid-state lithium metal batteries with a sp(3) boron-based solid single ion conducting polymer electrolyte
Toward ambient temperature operation with all-solid-state lithium metal batteries with a sp(3) boron-based solid single ion conducting polymer electrolyte
复制标题
采用 sp(3) 硼基固体单离子导电聚合物电解质的全固态锂金属电池实现环境温度操作
DOI：
10.1016/j.jpowsour.2015.12.010
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发表时间：
2016
影响因子：
9.2
通讯作者：
Cheng Hansong
中科院分区：
文献类型：
--
作者：
Zhang Yunfeng;Cai Weiwei;Rohan Rupesh;Pan Meize;Liu Yuan;Liu Xupo;Li Cuicui;Sun Yubao;Cheng Hansong
当将聚环氧乙烷（PEO）基固体聚合物电解质（SPE）的锂盐增加到高浓度时，其离子电导率衰减问题通过将基于电荷离域sp3硼的单离子导电聚合物电解质（SIPE）与聚（环氧乙烷）结合来制造固态sp3硼基SIPE膜而得到功能性克服。 （S-BSM）。通过表征，特别是差示扫描量热仪（DSC）和离子电导率研究，随着sp3硼基SIPE含量的稳步增加，所制备的S-BSM表现出熔点降低和离子电导率增加，从而显着改善了全固态锂电池的低温性能。捏造的李| S-BSM | LiFePO4电池在低于PEO熔点的温度下表现出高度的电化学稳定性和优异的循环性能，这是迄今为止基于SIPE的全固态锂电池的报道。
The ionic conductivity decay problem of poly(ethylene oxide) (PEO)-based solid polymer electrolytes (SPEs) when increase the lithium salt of the SPEs up to high concentration is here functionally overcome by the incorporation of a charge delocalizedsp3boron based single ion conducting polymer electrolyte (SIPE) with poly(ethylene oxide) to fabricate solid-statesp3boron based SIPE membranes (S-BSMs). By characterizations, particularly differential scanning calorimeter (DSC) and ionic conductivity studies, the fabricated S-BSMs showed decreased melting points and increased ionic conductivity as steadily increase the content ofsp3boron based SIPE, which significantly improved the low temperature performance of the all-solid-state lithium batteries. The fabricated Li | S-BSMs | LiFePO4cells exhibit highly electrochemical stability and excellent cycling at temperature below melting point of PEO, which has never been reported so far for SIPEs based all-solid-state lithium batteries.