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Scalable Synthesis of Ga2O3/N-Doped C Nanopapers as High-Rate Performance Anode for Li-Ion Batteries
ChemElectroChem ( IF 3.5 ) Pub Date : 2021-07-02 , DOI: 10.1002/celc.202100622 Zhen Xu 1 , Daobo Li 1 , Dongmei Zhang 1 , Jie Xu 1 , Junlin Lu 1 , Shibing Ni 1
ChemElectroChem ( IF 3.5 ) Pub Date : 2021-07-02 , DOI: 10.1002/celc.202100622 Zhen Xu 1 , Daobo Li 1 , Dongmei Zhang 1 , Jie Xu 1 , Junlin Lu 1 , Shibing Ni 1
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Ga2O3 is a promising anode material for lithium ion batteries (LIBs) owing to its high theoretical capacity and low lithiation potential. However, its performance improvement has been seriously hindered by the sluggish reaction kinetics. Herein, Ga2O3/N doped C nanopapers (Ga2O3/NC NPs) are firstly designed and synthesized via a scalable biomass-aided approach. The as-prepared Ga2O3/NC NPs deliver high reversible capacity and prominent rate capability as anode for LIBs, owing to its excellent reaction kinetics. It shows high discharge capacity of 477 mAh g−1 after 200 cycles at 0.2 A g−1, without obvious capacity attenuation upon cycling. After 3 periodic rate performance testing ranging from 0.1 to 1.6 A g−1, the reversible capacity of the Ga2O3/NC NPs still retains to 517 mAh g−1 when the current is reverting to 0.1 A g−1. The low and safe working potential, the prominent electrochemical performance and the scalable synthesis method for the Ga2O3/NC NPs endow it with great promising toward practical application.
中文翻译：
Ga2O3/N 掺杂 C 纳米纸的可扩展合成作为锂离子电池的高性能阳极
Ga 2 O 3具有高理论容量和低锂化电位，是一种很有前途的锂离子电池（LIBs）负极材料。然而，缓慢的反应动力学严重阻碍了其性能的提高。在此，Ga 2 O 3 /N 掺杂的碳纳米纸（Ga 2 O 3 /NC NPs）首先是通过可扩展的生物质辅助方法设计和合成的。由于其优异的反应动力学，所制备的 Ga 2 O 3 /NC NPs 作为锂离子电池的负极具有高可逆容量和突出的倍率性能。它在 0.2 A g -1 下循环 200 次后显示出 477 mAh g -1 的高放电容量，循环时无明显容量衰减。3周期速率性能测试范围从0.1到1.6 A克后-1，镓的可逆容量2 ö 3 / NC的NP仍然保留到517毫安克-1当电流恢复到0.1 A克-1。Ga 2 O 3 /NC NPs的低且安全的工作电位、突出的电化学性能和可扩展的合成方法使其在实际应用中具有广阔的前景。
更新日期：2021-09-02
中文翻译：
Ga2O3/N 掺杂 C 纳米纸的可扩展合成作为锂离子电池的高性能阳极
Ga 2 O 3具有高理论容量和低锂化电位，是一种很有前途的锂离子电池（LIBs）负极材料。然而，缓慢的反应动力学严重阻碍了其性能的提高。在此，Ga 2 O 3 /N 掺杂的碳纳米纸（Ga 2 O 3 /NC NPs）首先是通过可扩展的生物质辅助方法设计和合成的。由于其优异的反应动力学，所制备的 Ga 2 O 3 /NC NPs 作为锂离子电池的负极具有高可逆容量和突出的倍率性能。它在 0.2 A g -1 下循环 200 次后显示出 477 mAh g -1 的高放电容量，循环时无明显容量衰减。3周期速率性能测试范围从0.1到1.6 A克后-1，镓的可逆容量2 ö 3 / NC的NP仍然保留到517毫安克-1当电流恢复到0.1 A克-1。Ga 2 O 3 /NC NPs的低且安全的工作电位、突出的电化学性能和可扩展的合成方法使其在实际应用中具有广阔的前景。
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