Hierarchically Nanostructured Transition Metal Oxides for Lithium‐Ion Batteries

• Published in: Advanced science Vol. 5; no. 3; pp. 1700592 - n/a
• Main Authors: Zheng, Mingbo, Tang, Hao, Li, Lulu, Hu, Qin, Zhang, Li, Xue, Huaiguo, Pang, Huan
• Format: Journal Article
• Language: English
• Published: Germany John Wiley & Sons, Inc 01.03.2018; John Wiley and Sons Inc; Wiley
• Subjects: Efficiency; Electrodes; Electrolytes; Energy; Energy storage; hierarchical nanostructures; Innovations; Lithium; lithium‐ion batteries; Metal oxides; Morphology; Nanostructured materials; Review; Reviews; Scanning electron microscopy; Science; transition metal oxides; China; transition metal oxides; hierarchical nanostructures; lithium‐ion batteries
• ISSN: 2198-3844; 2198-3844
• DOI: 10.1002/advs.201700592

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. Hierarchical nanostructures have been extensively investigated in the field of lithium‐ion batteries because they can provide numerous accessible electroactive sites, shorten the ion diffusion pathway, and accommodate volume expansion. Research progress on hierarchically nanostructured transition metal oxides as electrode materials for lithium‐ion batteries is summarized and evaluated.