电解质
锰
储能
阳极
离子
结晶度
电池(电)
阴极
插层(化学)
锡
化学
材料科学
化学工程
无机化学
电极
工程类
物理
有机化学
结晶学
冶金
物理化学
量子力学
功率(物理)
作者
Albert L. Lipson,Baofei Pan,Saul H. Lapidus,Chen Liao,John T. Vaughey,Brian J. Ingram
标识
DOI:10.1021/acs.chemmater.5b04027
摘要
As new uses for larger scale energy storage systems are realized, new chemistries that are less expensive or have higher energy density are needed. While lithium-ion systems have been well studied, the availability of new energy storage chemistries opens up the possibilities for more diverse strategies and uses. One potential path to achieving this goal is to explore chemistries where a multivalent ion such as Ca2+ or Mg2+ is the active species. Herein, we demonstrate this concept for a Ca-ion system utilizing manganese hexacyanoferrate (MFCN) as the cathode to intercalate Ca reversibly in a dry nonaqueous electrolyte. Through characterization via X-ray absorption near-edge spectroscopy, it is determined that only the manganese changes oxidation state during cycling with Ca. X-ray diffraction indicates the MFCN maintains its crystallinity during cycling, with only minor structural changes associated with expansion and contraction. Furthermore, we have demonstrated the first rechargeable Ca-ion battery utilizing MFCN as the cathode and elemental tin as the anode.
科研通智能强力驱动
Strongly Powered by AbleSci AI