ACTIVE MATERIAL, ELECTRODE, SECONDARY BATTERY, BATTERY PACK AND VEHICLE

ACTIVE MATERIAL, ELECTRODE, SECONDARY BATTERY, BATTERY PACK AND VEHICLE

According to one approach, provided is an active material including monoclinic niobium titanium composite oxide particles, and carbon fibers with which at least a part of surfaces of the monoclinic niobium titanium composite oxide particles is covered. The monoclinic niobium titanium composite oxide...

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Bibliographische Detailangaben
Hauptverfasser: Hoshina, Keigo, Takami, Norio, Nakano, Yoshihiko, Ishibashi, Mitsuru, Harada, Yasuhiro
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:According to one approach, provided is an active material including monoclinic niobium titanium composite oxide particles, and carbon fibers with which at least a part of surfaces of the monoclinic niobium titanium composite oxide particles is covered. The monoclinic niobium titanium composite oxide particles satisfy 1.5 ≤ (α/β) ≤ 2.5. The monoclinic niobium titanium composite oxide particles have an average primary particle size of 0.05 pm to 2 µm. The carbon fibers contain one or more metal elements selected from the group consisting of Fe, Co and Ni, and satisfy 1/10000 ≤ (γ/σ) ≤ 1/100. The carbon fibers have an average fiber diameter in the range of 5 nm to 100 nm.