LITHIUM NICKEL MANGANESE COMPOSITE OXIDE, METHOD FOR PRODUCING SAME, CATHODE AND ELECTRICITY STORAGE DEVICE USING SAME

Provided is a method for producing a 5V spinel structured lithium nickel manganese composite oxide which has a low nickel oxide content in a minor phase. A mixture including a pre-prepared spinel structured lithium nickel manganese composite oxide which has a low molar ratio of nickel to manganese (...

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Main Authors NAKAMURA Tatsuya, HANAFUSA Reiko, KOTANI Kazuki, AKAGAWA Kazuhiro, KOSHIBA Nobuharu, KUMASHIRO Yoshimasa
Format Patent
LanguageEnglish
French
Japanese
Published 15.09.2016
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Summary:Provided is a method for producing a 5V spinel structured lithium nickel manganese composite oxide which has a low nickel oxide content in a minor phase. A mixture including a pre-prepared spinel structured lithium nickel manganese composite oxide which has a low molar ratio of nickel to manganese (Ni/Mn=0.10 to 0.29), a lithium compound, and a nickel compound is fired to produce the spinel structured lithium nickel manganese composite oxide which has a high molar ratio of nickel to manganese (Ni/Mn= about 1/3). L'invention concerne un procédé de fabrication d'un oxyde de composite lithium nickel manganèse à structure de spinelle 5V qui présente une faible teneur en oxyde de nickel dans une phase mineure. Un mélange consistant en un oxyde de composite lithium nickel manganèse à structure de spinelle 5V pré-préparé qui présente un rapport molaire nickel sur manganèse bas (Ni/Mn = 0,10 à 0,29), un composé lithium, et un composé nickel est cuit pour produire la structure d'oxyde de composite lithium nickel manganèse à structure de spinelle qui présente un rapport molaire nickel sur manganèse élevé (Ni/Mn = environ 1/3).  副相の酸化ニッケルの含有量が少ない5V級スピネル構造リチウムニッケルマンガン複合酸化物の製造方法を提供する。 予め調製した、マンガンに対するニッケルのモル比が低い(Ni/Mn=0.10~0.29)スピネル構造リチウムニッケルマンガン複合酸化物と、リチウム化合物と、ニッケル化合物とを含む混合物を焼成して、マンガンに対するニッケルのモル比が高い(Ni/Mn=1/3程度)スピネル構造リチウムニッケルマンガン複合酸化物を製造する。
Bibliography:Application Number: WO2016JP56705