期刊
NATURE MATERIALS
卷 15, 期 2, 页码 169-+出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/NMAT4462
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- Toyota Battery Research division at Higashi Fuji [M6]
The development of a rechargeable battery technology using light electropositive metal anodes would result in a breakthrough in energy density(1). For multivalent charge carriers (Mn+), the number of ions that must react to achieve a certain electrochemical capacity is diminished by two (n = 2) or three (n = 3) when compared with Li+ (ref. 2). Whereas proof of concept has been achieved for magnesium(3-5), the electrodeposition of calcium has so far been thought to be impossible(6) and research has been restricted to non-rechargeable systems(7-10). Here we demonstrate the feasibility of calcium plating at moderate temperatures using conventional organic electrolytes, such as those used for the Li-ion technology. The reversibility of the process on cycling has been ascertained and thus the results presented here constitute the first step towards the development of a new rechargeable battery technology using calcium anodes.
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