A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SEPARATOR FOR BATTERY, LITHIUM BATTERY, AND MANUFACTURING METHODS THEREOF
To provide a separator for a battery, which is less in pore, a lithium battery including the battery separator, and methods for manufacturing them.SOLUTION: A separator for a battery comprises: an oxide electrolyte sintered body; and a resin. The oxide electrolyte sintered body has grain boundaries among crystal grains of a garnet type ion-conducting oxide. The number-average grain diameter of the crystal grains is 3 μm or less. When an in-grain resistance value, which is an ion conduction resistance in the crystal grains is R, and a grain boundary resistance value, which is an ion conduction resistance at grain boundaries among the crystal grains, is represented by R, the following expression 1 is satisfied: R/(R+R)≤0.6 Expression 1.SELECTED DRAWING: Figure 1
【課題】空隙の少ない電池用セパレータ、及び、当該電池用セパレータを含むリチウム電池、並びに、これらの製造方法を提供する。【解決手段】酸化物電解質焼結体と、樹脂と、を含む電池用セパレータであって、前記酸化物電解質焼結体は、ガーネット型イオン伝導性酸化物の結晶粒子間に粒界を有し、前記結晶粒子の個数平均粒径が３μｍ以下であり、前記結晶粒子の内部におけるイオン伝導抵抗である粒内抵抗値をＲｂとし、前記結晶粒子間の粒界におけるイオン伝導抵抗である粒界抵抗値をＲｇｂとしたときに下記式１を満たすことを特徴とする、電池用セパレータ。式１：Ｒｇｂ／（Ｒｂ＋Ｒｇｂ）≦０．６【選択図】図１
SEPARATOR FOR BATTERY, LITHIUM BATTERY, AND MANUFACTURING METHODS THEREOF
To provide a separator for a battery, which is less in pore, a lithium battery including the battery separator, and methods for manufacturing them.SOLUTION: A separator for a battery comprises: an oxide electrolyte sintered body; and a resin. The oxide electrolyte sintered body has grain boundaries among crystal grains of a garnet type ion-conducting oxide. The number-average grain diameter of the crystal grains is 3 μm or less. When an in-grain resistance value, which is an ion conduction resistance in the crystal grains is R, and a grain boundary resistance value, which is an ion conduction resistance at grain boundaries among the crystal grains, is represented by R, the following expression 1 is satisfied: R/(R+R)≤0.6 Expression 1.SELECTED DRAWING: Figure 1
【課題】空隙の少ない電池用セパレータ、及び、当該電池用セパレータを含むリチウム電池、並びに、これらの製造方法を提供する。【解決手段】酸化物電解質焼結体と、樹脂と、を含む電池用セパレータであって、前記酸化物電解質焼結体は、ガーネット型イオン伝導性酸化物の結晶粒子間に粒界を有し、前記結晶粒子の個数平均粒径が３μｍ以下であり、前記結晶粒子の内部におけるイオン伝導抵抗である粒内抵抗値をＲｂとし、前記結晶粒子間の粒界におけるイオン伝導抵抗である粒界抵抗値をＲｇｂとしたときに下記式１を満たすことを特徴とする、電池用セパレータ。式１：Ｒｇｂ／（Ｒｂ＋Ｒｇｂ）≦０．６【選択図】図１
SEPARATOR FOR BATTERY, LITHIUM BATTERY, AND MANUFACTURING METHODS THEREOF
電池用セパレータ、及び、リチウム電池、並びに、これらの製造方法
NAKANISHI SHINJI (author) / OTA SHINGO (author)
2019-07-22
Patent
Electronic Resource
Japanese
IPC:
C01G
Verbindungen der von den Unterklassen C01D oder C01F nicht umfassten Metalle
,
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
/
C04B
Kalk
,
LIME
/
H01M
Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie
,
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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