BATTERY,申请号JP19820171628-传众专利搜索

BATTERY

申请公布号：JPS5960865(A)

申请号：JP19820171628

申请日期：1982.09.29

申请公布日期：1984.04.06

申请人：

MATSUSHITA DENKI SANGYO KK

发明人：EDA NOBUO;MORITA TERUYOSHI

分类号：H01M2/02;H01M6/16;(IPC1-7):01M6/16

主分类号：H01M2/02

摘要：PURPOSE:To improve corrosion resistance and storage and stabilize performance by containing alkaline metal salt molybdate in an electrolyte of manganese dioxide lithium battery that uses a case made of stainless steel containing chromium below a specified percentage. CONSTITUTION:General use stainless steel below chromium content 20 weight percentage is used for a positive electrode case 1 and alkaline metal salt molybdate that changes into a corrosion inhibitor is dissolved in an electrolyte, for example, only by 0.001-0.01mol/l concentration. In this case, alkaline metal salt molybdate is represented by M2MoO4 and M is Li, Na, K, etc. As a result, the anion molybdate dissolved in the electrolyte is adsorbed specifically in a hydroxyl group that exists on the oxidation coat of the inner surface of stainless steel as the positive electrode case 1 and comprises a single or multiple molecular layer. This layer changes into a cationic permeability coat and prevents the adsorption of chlorine ions that causes corrosion and then can suppress the corrosion and voltage drop and an incease in internal resistance following it.