High-performance Lithium Secondary Batteries Using Cathode Active Materials of Triquinoxalinylenes Exhibiting Six Electron Migration
High-performance Lithium Secondary Batteries Using Cathode Active Materials of Triquinoxalinylenes Exhibiting Six Electron Migration
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DOI：
10.1246/cl.2011.750
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发表时间：
2011-07-05
影响因子：
1.6
通讯作者：
Satoh, Masaharu
中科院分区：
文献类型：
--
作者：
Matsunaga, Takayuki;Kubota, Takayuki;Satoh, Masaharu
使用三喹啉撑作为阴极活性材料和锂金属阳极制造纽扣电池。第一次放电曲线显示出非常大的容量（420 A·h·kg（-1）），这对应于第一次充电中的六个电子迁移。然而，重复充放电直到第15次循环，容量逐渐降低，但此后容量保持恒定，为220 A·h·kg（-1）。即使在100次循环后，该大值仍然存在。此外，使用三溴取代的衍生物由于从第一次充电-放电循环开始的相对稳定的六电子迁移而产生大的放电容量（约250 A·h·kg（-1））。
A coin cell battery is fabricated using triquinoxalinylene as a cathode active material and a lithium metal anode. The first discharge curve shows a remarkably large capacity (420 A h kg(-1)), which corresponds to a six electron migration in the first charge. However, repeating the charge-discharge until the 15th cycle gradually decreases the capacity, but after that the capacity remains constant with a value of 220A h kg(-1). This large value remains even after 100 cycles. Additionally, the use of a tribromo-substituted derivative gives a large discharge capacity (approximate to 250 A h kg(-1)) due to a comparatively stable six electron migration from the first charge-discharge cycle.