ALKALINE BATTERY,申请号JP19830165622-传众专利搜索

ALKALINE BATTERY

申请公布号：JPS6056366(A)

申请号：JP19830165622

申请日期：1983.09.07

申请公布日期：1985.04.01

申请人：

HITACHI MAXELL KK

发明人：AZUMA HACHIROU;ISHIDA KAZUO;KOSEKI KIMITAKA

分类号：H01M4/12;H01M4/42;(IPC1-7):H01M4/42

主分类号：H01M4/12

摘要：PURPOSE:To improve weighing accuracy and stabilize the performance of an alkaline battery by preparing a negative agent from zinc powder containing at least 90wt% of spherical zinc particles having a mesh of 100-200 and a longer axis diameter/shorter axis diameter ratio of 1.1 or below. CONSTITUTION:Zinc powder containing at least 90wt% of zinc particles of 100- 200 mesh manufactured by a rotary drum method and having a longer axis diameter/shorter axis diameter ratio of 1.1 or below, is amalgamated with 10pts. wt. (to 100pts.wt. of the above zinc powder) of mercury to prepare a negative agent. Next, after a negative electrode 7 is formed by the negative agent, the negative electrode 7 is combined with a positive electrode 1, a separator 3, an electrolyte-absorbing body 4 and the like, thereby constituting a button-type silver oxide battery. As a result, weighing accuracy can be widely improved due to an improved fluidity of the negative agent achieved by restricting the form of the zinc particles. Consequently, it is possible to sufficiently cope with a decreased size of the battery and to stabilize the discharge performance of the battery.