Hierarchically Nanostructured Transition Metal Oxides for Lithium‐Ion Batteries,Advanced Science

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Hierarchically Nanostructured Transition Metal Oxides for Lithium‐Ion Batteries
Advanced Science ( IF 14.3 ) Pub Date : 2018-01-03 , DOI: 10.1002/advs.201700592
Mingbo Zheng ₁ , Hao Tang ₁ , Lulu Li ₁ , Qin Hu ₁ , Li Zhang ₁ , Huaiguo Xue ₁ , Huan Pang ₁

Affiliation

Lithium‐ion batteries (LIBs) have been widely used in the field of portable electric devices because of their high energy density and long cycling life. To further improve the performance of LIBs, it is of great importance to develop new electrode materials. Various transition metal oxides (TMOs) have been extensively investigated as electrode materials for LIBs. According to the reaction mechanism, there are mainly two kinds of TMOs, one is based on conversion reaction and the other is based on intercalation/deintercalation reaction. Recently, hierarchically nanostructured TMOs have become a hot research area in the field of LIBs. Hierarchical architecture can provide numerous accessible electroactive sites for redox reactions, shorten the diffusion distance of Li‐ion during the reaction, and accommodate volume expansion during cycling. With rapid research progress in this field, a timely account of this advanced technology is highly necessary. Here, the research progress on the synthesis methods, morphological characteristics, and electrochemical performances of hierarchically nanostructured TMOs for LIBs is summarized and discussed. Some relevant prospects are also proposed.

中文翻译：

用于锂离子电池的分级纳米结构过渡金属氧化物

锂离子电池（LIB）因其高能量密度和长循环寿命而广泛应用于便携式电子设备领域。为了进一步提高锂离子电池的性能，开发新型电极材料具有重要意义。各种过渡金属氧化物（TMO）作为锂离子电池的电极材料已被广泛研究。从反应机理来看，TMO主要有两种，一种是基于转化反应的，另一种是基于嵌入/脱嵌反应的。近年来，分级纳米结构TMOs已成为LIB领域的热门研究领域。分层结构可以为氧化还原反应提供许多可访问的电活性位点，缩短反应过程中锂离子的扩散距离，并适应循环过程中的体积膨胀。随着该领域研究进展迅速，及时介绍这一先进技术非常有必要。本文对LIB用分级纳米结构TMO的合成方法、形貌特征和电化学性能的研究进展进行了总结和讨论。还提出了一些相关的前景。

更新日期：2018-01-03

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