HIGH TEMPERATURE SODIUM SECONDARY BATTERY MODULE AND BATTERY SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a high temperature sodium secondary battery module and a battery system wherein handling such as assembling and battery replacement is easy, damage spreading over an adjacent battery hardly occurs even when an active material is leaked, and it is highly safe even for water infiltration. SOLUTION: This secondary battery module contains high temperature sodium secondary batteries 2 such as a sodium-sulfur battery in a heat insulated container 1 in plural quantity. In this case, the high temperature sodium secondary batteries 2 and a power or fiber state insulating material 4 is contained in a bottomed metallic container 3, and a plurality of the bottomed metallic containers 3 are installed inside the heat insulated container 1. A battery system is composed by using a high temperature sodium secondary battery module having the above mentioned structure.