A secondary battery device is disclosed comprising: a secondary battery for supplying electric power into a load circuit; a load state judging unit for judging an operation state of said load circuit; and an overdischarge protective unit connected to said ...

An assembled battery unit (3) has a plurality of battery cells (9) and one holding plate (8), and the battery cells (9) are fixed on the holding plate (8). In the assembled battery unit (3) constructed as described above, the battery cells (9) are fixed on...

The process for the preparation of a battery according to the present invention comprises the following steps. An electricity-generating element having a positive electrode lead member and a negative electrode lead member drawn therefrom is inserted into a...