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首页> 外文期刊>Materials Research Bulletin >Preparation and electrochemical properties of Li-rich spinel-type lithium manganate coated LiMn_2O_4
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Preparation and electrochemical properties of Li-rich spinel-type lithium manganate coated LiMn_2O_4

机译:富锂尖晶石型锰酸锂包覆LiMn_2O_4的制备及电化学性能

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摘要

Li-rich spinel-type lithium manganate (SC) coated LiMn_2O_4 composites were prepared and characterized by XRD, SEM, FT-IR, ICP, etc. Their charge/discharge behaviors were studied between 3.0 and 4.3 V at 40 mA g~(-1) under room temperature, and the results showed that SC coated on surface of LiMn_2O_4 could improve cycling stability of composite electrodes. The composite (S1) containing 4.8 wt% of SC exhibited noticeably improved cycling stability, whereas the initial specific capacity was very close to that of LiMn_2O_4.
机译:制备了富锂尖晶石型锰酸锂(SC)包覆的LiMn_2O_4复合材料,并通过XRD,SEM,FT-IR,ICP等进行了表征。在40 mA g〜(- 1)在室温下,结果表明,在LiMn_2O_4表面包覆SC可以提高复合电极的循环稳定性。含有4.8wt%SC的复合材料(S1)显示出明显改善的循环稳定性,而初始比容量非常接近LiMn_2O_4。

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