METHODS FOR MANUFACTURING NEGATIVE ELECTRODE MIXTURE, NEGATIVE ELECTRODE AND ELECTROCHEMICAL CELL,申请号JP20150032698-传众专利搜索

METHODS FOR MANUFACTURING NEGATIVE ELECTRODE MIXTURE, NEGATIVE ELECTRODE AND ELECTROCHEMICAL CELL

申请公布号：JP2016157517(A)

申请号：JP20150032698

申请日期：2015.02.23

申请公布日期：2016.09.01

申请人：

SEIKO INSTRUMENTS INC

发明人：WATANABE SHUNJI;SUGANO YOSHIMI;TANAKA KAZUMI;TAMACHI TSUNEAKI

分类号：H01M4/1393;H01M4/13;H01M4/133;H01M4/136;H01M4/139;H01M4/1397;H01M4/36;H01M4/48;H01M4/58

主分类号：H01M4/1393

摘要：PROBLEM TO BE SOLVED: To provide methods for manufacturing a negative electrode mixture, a negative electrode and an electrochemical cell which eliminate the need for a chemical conversion step.SOLUTION: A method for manufacturing a negative electrode mixture comprises: a primary mixing step for mixing a negative electrode active material (A) in which lithium is over an irreversible capacity, and a negative electrode active material (B) consisting of a carbonaceous material; and a secondary mixing step for adding a negative electrode active material (C) in which lithium is under the irreversible capacity to the mixture obtained in the primary mixing step and mixing them. A method for a negative electrode 3 comprises the steps of: obtaining a negative electrode mixture according to the negative electrode mixture manufacturing method; and forming the negative electrode by use of the negative electrode mixture. A method for manufacturing an electrochemical cell 1 comprises the step of forming a negative electrode 3 according to the negative electrode manufacturing method.SELECTED DRAWING: Figure 1