NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY CELL

NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY CELL

To provide a negative electrode for lithium-ion secondary battery, negative electrode which has good cyclability by suppressing the active material from coming off or falling down from the current collector. It has a current collector 1; and an active-material layer 6 in which a conductive additive...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MURASE, HITOTOSHI, HIROSE, TAKAYUKI, MIYOSHI, MANABU
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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Beschreibung
Zusammenfassung:To provide a negative electrode for lithium-ion secondary battery, negative electrode which has good cyclability by suppressing the active material from coming off or falling down from the current collector. It has a current collector 1; and an active-material layer 6 in which a conductive additive 3; and an active material 2 being surface-treated with use of a surface treatment agent that is specified by a general formula: X-Si (CH 3 ) n - (OR) 3-n wherein: "n" is 0, 1 or 2; "OR" is a methoxy group, or an ethoxy group; and "X" is a methoxy group, an ethoxy group, or a vinyl group; are bound onto a surface of the current collector 1 via a binder 4 comprising a resin that has an alkoxy group-containing silane-modified part.