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Resilient Energy Storage under High-Temperature with In-Situ-Synthesized MnOx@Graphene as Anode
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2017-09-25 00:00:00 , DOI: 10.1021/acsami.7b09853 Xiaodong Tian 1, 2 , Hongli Zhu 3 , Chan Jiang 4 , Mingbao Huang 1, 2 , Yuanfu Deng 1, 2 , Songping Wu 1, 2
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2017-09-25 00:00:00 , DOI: 10.1021/acsami.7b09853 Xiaodong Tian 1, 2 , Hongli Zhu 3 , Chan Jiang 4 , Mingbao Huang 1, 2 , Yuanfu Deng 1, 2 , Songping Wu 1, 2
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An novel exfoliation strategy to few-layered graphene (FLG) combined with in situ synthesized amorphous MnOx has been established via a facile and robust ball milling route in the presence of KMnO4. The facile synthesis approach has the features of low cost, environmentally friendly nature and scalable capability. As an anode for lithium-ion batteries, amorphous MnOx@FLG delivered a wonderful electrochemical performance under extremely operational conditions, that is, an excellent reversible capacity of 856 mAh g–1 at a high current density of 1 A g–1 after 75 cycles under a high temperature of 85 °C. Those excellent electrochemical performances could be ascribed to elaborately designed three-dimensional nanostructure, the well-chosen electrolyte, significant incorporation of in situ Mn(IV) nanocrystal and few-layered graphene, and the contribution of pseudocapacitance. Remarkable electrochemical performance under a widely operational temperature window makes the amorphous MnOx@FLG composites promising anode of Li-ion batteries for heavy-duty application.
中文翻译：
原位合成MnO x @石墨烯为阳极的高温弹性储能
在存在KMnO 4的情况下，通过一种简便而稳健的球磨工艺，建立了一种与原位合成的非晶态MnO x结合的少层石墨烯（FLG）的新型剥落策略。简便的合成方法具有成本低，对环境友好的性质和可扩展的能力的特征。作为锂离子电池的阳极，无定形MnO x @FLG在极端的操作条件下提供了出色的电化学性能，即在1 A g –1的高电流密度下具有856 mAh g –1的出色可逆容量。在85°C的高温下经过75个循环后。这些出色的电化学性能可归因于精心设计的三维纳米结构，精心选择的电解质，原位Mn（IV）纳米晶体和很少层的石墨烯的大量掺入以及拟电容的贡献。在宽工作温度范围内的出色电化学性能使无定形MnO x @FLG复合材料成为锂离子电池重型应用的阳极。
更新日期：2017-09-26
中文翻译：
原位合成MnO x @石墨烯为阳极的高温弹性储能
在存在KMnO 4的情况下，通过一种简便而稳健的球磨工艺，建立了一种与原位合成的非晶态MnO x结合的少层石墨烯（FLG）的新型剥落策略。简便的合成方法具有成本低，对环境友好的性质和可扩展的能力的特征。作为锂离子电池的阳极，无定形MnO x @FLG在极端的操作条件下提供了出色的电化学性能，即在1 A g –1的高电流密度下具有856 mAh g –1的出色可逆容量。在85°C的高温下经过75个循环后。这些出色的电化学性能可归因于精心设计的三维纳米结构，精心选择的电解质，原位Mn（IV）纳米晶体和很少层的石墨烯的大量掺入以及拟电容的贡献。在宽工作温度范围内的出色电化学性能使无定形MnO x @FLG复合材料成为锂离子电池重型应用的阳极。
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