POSITIVE-ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE, BATTERY, BATTERY PACK, ELECTRONIC DEVICE, ELECTRIC VEHICLE, ELECTRICITY STORAGE DEVICE, AND ELECTRIC POWER SYSTEM

POSITIVE-ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE, BATTERY, BATTERY PACK, ELECTRONIC DEVICE, ELECTRIC VEHICLE, ELECTRICITY STORAGE DEVICE, AND ELECTRIC POWER SYSTEM

A positive electrode includes first active material particles, second active material particles, and third active material particles, and the second active material particles are aggregated particles formed by aggregation of primary particles. The average particle size D1 of the first active materia...

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Bibliographische Detailangaben
Hauptverfasser: AKIYAMA, Yuya, OUKI, Atsushi, MATSUSHITA, Tadashi, KURATSUKA, Masaki, SATO, Takashi
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Zusammenfassung:A positive electrode includes first active material particles, second active material particles, and third active material particles, and the second active material particles are aggregated particles formed by aggregation of primary particles. The average particle size D1 of the first active material particles, the average particle size D2 of the second active material particles, and the average particle size D3 of the third active material particles satisfy a relationship of D1 > D2 > D3. The particle disintegration rate ±1 of the first active material particle and the particle disintegration rate ±2 of the third active material particle are not more than 20%, and the particle disintegration rate ² of the second active material particle is not less than 70%.