ANODE ACTIVE MATERIAL, METHOD FOR PRODUCING ANODE ACTIVE MATERIAL, AND BATTERY

• Main Authors: WAKASUGI SATOSHI, SHIZUKA MASUOKA, UCHIYAMA TAKAYUKI
• Format: Patent
• Language: Chinese; English
• Published: 02.02.2021
• 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

A main object of the present disclosure is to provide an anode active material of which expansion along with charge is small. The present disclosure achieves the object by providing an anode active material to be used for a battery, wherein the anode active material is a particle in unwoven shape that contains Si fiber, an average particle size D50 of the anode active material is 0.2 [mu]m or moreand 3.6 [mu]m or less, and the anode active material is amorphous. 本公开的主要目的是提供一种与充电相伴的膨胀量小的负极活性物质。本公开中通过提供一种负极活性物质来解决上述课题，所述负极活性物质用于电池，所述负极活性物质是含有Si纤维的无纺布状的粒子，所述负极活性物质的平均粒径(D50)为0.2μm以上且3.6μm以下，所述负极活性物质为非晶质。