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AssigneeSony Corporation
InventorsTakeshi MOROZUMI, Keitaro KITADA, Yoshihide NAGATA, Takatoshi MUNAOKA, Kenji MATSUBARA, Yuko OHTANIUCHI, Aiko KANAZAWA, Nobuyuki NAGAOKA, Masahiro KIKKAWA
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A secondary battery includes a cathode, an anode including an active material, and non-aqueous electrolytic solution. The active material includes a center portion and a covering portion provided on part or all of the center portion. The center portion includes silicon, tin, or both as constituent elements. The covering portion includes a plurality of fibrous carbon materials. Part or all of the fibrous carbon materials extend in a direction along a surface of the center portion and are closely attached to the center portion.
A secondary battery, comprising:
An electrode, comprising
An active material, comprising
A method of manufacturing an active material, the method comprising bringing sol solution that includes a plurality of fibrous carbon materials into contact with part or all of a center portion, then heating the sol solution, and thereby forming a covering portion including the fibrous carbon materials, the center portion including silicon (Si), tin (Sn), or both as constituent elements.
(canceled)
Dependencies are inferred from the claim text.