COMPOSITE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, ELECTRODE COMPOSITION FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY ELECTRODE, AND METHOD FOR MANUFACTURING COMPOSITE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY

• Main Authors: IWASHIMA Toshiki, ARAKAWA Taichi, ISHIZUKA Yuto, MISAKI Hidehiko, MANIWA Atsushi, ABE Masanori
• Format: Patent
• Language: English; French; Japanese
• Published: 30.09.2021
• 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

This composite active material for a lithium secondary battery includes a matrix having a plurality of gaps, and an Si-based material housed in the gaps. The matrix includes an amorphous carbon. The Si-based material is Si or an Si alloy. L'invention concerne une matière active composite pour une batterie secondaire au lithium qui comprend une matrice ayant une pluralité d'espaces, et un matériau à base de Si logé dans les espaces. La matrice comprend un carbone amorphe. Le matériau à base de Si est du Si ou un alliage de Si. リチウム二次電池用複合活物質は、複数の空隙を有するマトリクスと、空隙の内に収容されるＳｉ系材料とを含む。マトリクスは非晶性炭素を含む。Ｓｉ系材料はＳｉまたはＳｉ合金である。