ACTIVE MATERIAL, ALL-SOLID-STATE BATTERY AND MANUFACTURING METHOD OF ACTIVE MATERIAL

To provide an active material capable of suppressing a volume change of an electrode layer during charging and discharging.SOLUTION: An active material used for an all-solid-state battery according to the present invention contains at least Si, and in the infrared spectroscopic spectrum, when the ma...

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Bibliographic Details
Main Authors WASEDA TETSUYA, EGUCHI TATSUYA, YOSHIDA ATSUSHI, HARADA MASANORI, OTAKI MITSUTOSHI
Format Patent
LanguageEnglish
Japanese
Published 23.05.2022
Subjects
BASIC ELECTRIC ELEMENTS
CHEMISTRY
COMPOUNDS THEREOF
ELECTRICITY
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:To provide an active material capable of suppressing a volume change of an electrode layer during charging and discharging.SOLUTION: An active material used for an all-solid-state battery according to the present invention contains at least Si, and in the infrared spectroscopic spectrum, when the maximum peak intensity at 900 cm-1 or more and 950 cm-1 or less is I1, and the maximum peak intensity at 1000 cm-1 or more and 1100 cm-1 or less is I2, the I1 and the I2 satisfy 0.55≤I2/I1≤1.0 and 0.01≤I1.SELECTED DRAWING: Figure 5 【課題】本開示は、充放電時の電極層の体積変化を抑制可能な活物質を提供することを主目的とする。【解決手段】本開示においては、全固体電池に用いられる活物質であって、少なくともＳｉを含有し、赤外分光スペクトルにおいて、９００ｃｍ－１以上９５０ｃｍ－１以下における最大ピーク強度をＩ１とし、１０００ｃｍ－１以上１１００ｃｍ－１以下における最大ピーク強度をＩ２とした場合に、上記Ｉ１および上記Ｉ２が、０．５５≦Ｉ２／Ｉ１≦１．０、および、０．０１≦Ｉ１を満たす、活物質を提供することにより、上記課題を解決する。【選択図】図５
Bibliography:Application Number: JP20200188134