POWER STORAGE DEVICE AND MANUFACTURING METHOD THEREOF

PROBLEM TO BE SOLVED: To provide a power storage device which is easy to manufacture while ensuring its capacity and output.SOLUTION: A power storage device comprises a negative electrode having a negative electrode active material layer including a hardly graphitizable carbon. The true specific wei...

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Hauptverfasser:	KOZONO TAKU, ARAKI KIYO, IZUMI REIJI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BASIC ELECTRIC ELEMENTS CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a power storage device which is easy to manufacture while ensuring its capacity and output.SOLUTION: A power storage device comprises a negative electrode having a negative electrode active material layer including a hardly graphitizable carbon. The true specific weight of the hardly graphitizable carbon is 1.55-1.70 g/cm3, and the average particle diameter of the hardly graphitizable carbon is 6 μm or less.SELECTED DRAWING: Figure 1 【課題】容量と出力とを確保しつつ製造することが容易な蓄電素子の提供。【解決手段】難黒鉛化炭素を含む負極活物質層を有する負極を備え、前記難黒鉛化炭素の真比重が１．５５〜１．７０ｇ／ｃｍ３であり、且つ、該難黒鉛化炭素の平均粒子径が６μｍ以下である、蓄電素子である。【選択図】図１