LITHIUM ION BATTERY

PROBLEM TO BE SOLVED: To provide a lithium ion battery excellent in storage stability, high in input/output, and high in volume energy density.SOLUTION: A lithium ion battery includes: a wound electrode group comprising a positive electrode, a negative electrode and a separator wound therein; and an...

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Bibliographische Detailangaben
Hauptverfasser:	KOTADO KATSUNORI, MIKUNI HIROKI, HABA EISUKE, ABE MIE
Format:	Patent
Sprache:	eng ; jpn
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:	PROBLEM TO BE SOLVED: To provide a lithium ion battery excellent in storage stability, high in input/output, and high in volume energy density.SOLUTION: A lithium ion battery includes: a wound electrode group comprising a positive electrode, a negative electrode and a separator wound therein; and an electrolyte. The positive electrode includes a collector and a positive electrode mixture formed to the collector. The positive electrode mixture contains a spinel type lithium-manganese oxide, graphite, acetylene black and aluminum silicate. 【課題】保存安定性に優れ、高入出力で、高体積エネルギー密度を有するリチウムイオン電池を提供する。【解決する手段】正極、負極およびセパレータを捲回した電極捲回群と、電解液と、を備えるリチウムイオン電池であって、前記正極は、集電体と前記集電体に形成された正極合材とを有し、前記正極合材は、スピネル型リチウム・マンガン酸化物、黒鉛、アセチレンブラック及びアルミニウムケイ酸塩を含むリチウムイオン電池。【選択図】図１