Honda Motor Co., Ltd.
NEGATIVE ELECTRODE FOR USE IN FLUORIDE ION SECONDARY BATTERY AND FLUORIDE ION SECONDARY BATTERY INCLUDING SAME

Abstract:

Provided is a fluoride ion secondary battery having a capacity larger than that of a conventional one. The fluoride ion secondary battery has a negative electrode including zirconium fluoride as a negative electrode active material. The zirconium fluoride may be in the form of particles with an average particle size of 100 nm or less, and the negative electrode may have a zirconium fluoride content of less than 50 % by mass. The negative electrode active material may further include metallic zirconium, which may be in the form of particles with an average particle size of 75 .mu.m or less. The negative electrode may have a metallic zirconium content of 8% by mass or less.