Building Honeycomb-Like Hollow Microsphere Architecture in a Bubble Template Reaction for High-Performance Lithium-Rich Layered Oxide Cathode Materials

• DOI: 10.1021/acsami.7b07542
• Publication Date: 2017-08-22T11:10:46Z
• Authors: Zhaoyong Chen; Xiaoyan Yan; Ming Xu; Kaifeng Cao; Huali Zhu; Lingjun Li; Junfei Duan
• Keywords: Honeycomb; Honeycomb structure

In the family of high-performance cathode materials for lithium-ion batteries, lithium-rich layered oxides come out in front because a high reversible capacity exceeding 250 mAh g–1. However, long-term energy retention and densities oxide require stable structure with large surface areas. Here we propose "bubble template" reaction to build "honeycomb-like" hollow microsphere architecture Li1.2Mn0.52Ni0.2Co0.08O2 material. Our material is designed ca. 8-μm-sized secondary particles highly exposed porous structures that promise flexible volume achieve superior stability rate capability. preliminary electrochemical experiments show 287 g–1 at 0.1 C 96% after 100 cycles 1.0 C. Furthermore, capability without any other modifications, reaching 197 3.0 94% cycles. This approach may shed light on new engineering materials.