ELECTROCHEMICAL DEVICE

ELECTROCHEMICAL DEVICE

The electrochemical device includes a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode. The negative electrode includes a negative electrode mixture layer, the negative electrode mixture layer contains a binding agent and a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ENDOU, TOUGO, SHIMAMURA, NOBUHIRO, NAGAMITSU, KENICHI
Format: Patent
Sprache:eng
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:The electrochemical device includes a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode. The negative electrode includes a negative electrode mixture layer, the negative electrode mixture layer contains a binding agent and a negative electrode active material reversibly doped with a lithium ion. The negative electrode active material contains non-graphitizable carbon. An average particle size of the binding agent is more than or equal to 140 nm. In a discharged state, a potential of the negative electrode is less than or equal to +0.2 V with respect to a potential of a Li counter electrode.