Developing cathodes that can support high charge-discharge rates would improve the power density of lithium-ion batteries. Herein, the development of high-power cathodes without sacrificing energy density is reported. N,N'-diphenylphenazine was identified as a promising charge-storage center by electrochemical studies due to its reversible, fast electron transfer at high potentials. By incorporating the phenazine redox units in a cross-linked network, a high-capacity (223 mA h g-1 ), high-voltage (3.45 V vs. Li/Li+ ) cathode material was achieved. Optimized cross-linked materials are able to deliver reversible capacities as high as 220 mA h g-1 at 120 C with minimal degradation over 1000 cycles. The work presented herein highlights the fast ionic transport and rate capabilities of amorphous organic materials and demonstrates their potential as materials with high energy and power density for next-generation electrical energy-storage technologies.

中文翻译：

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交联对基于吩嗪的聚合物阴极性能指标的影响。

开发能够支持高充放电速率的阴极将提高锂离子电池的功率密度。这里，报道了在不牺牲能量密度的情况下开发高功率阴极的方法。N，N'-二苯基吩嗪因其在高电势下可逆的快速电子转移而被电化学研究确定为有希望的电荷存储中心。通过将吩嗪氧化还原单元并入交联网络中，可获得高容量（223 mA h g-1），高电压（3.45 V vs. Li / Li +）阴极材料。经过优化的交联材料能够在120 C的条件下提供高达220 mA h g-1的可逆容量，而在1000次循环中的降解却最小。