期刊
CHEMICAL COMMUNICATIONS
卷 53, 期 37, 页码 5208-5211出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6cc10280h
关键词
-
资金
- JSPS KAKENHI [JP 16K14103]
Structurally identical KVPO4F and KVOPO4 are evaluated as positive electrode materials for non-aqueous potassium-ion batteries. KVPO4F and KVOPO4 show highly reversible potassium extraction/ insertion with discharge capacities of ca. 92mA h g(-1) and ca. 84 mA h g(-1), respectively, and their average discharge voltage reaches above 4.0 V with 1 M KPF6 EC/PC electrolyte at 2.0-5.0 V. Despite the extraction of large potassium-ions, their lattice volume shrinkages after charging to 5.0 V are 5.8% for KVPO4F and 3.3% for KVOPO4, leading to stable cycle performance. This is the first report to confirm the charge/discharge behaviours of vanadium phosphate electrodes in 4 V-class K cells.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据