An object of the present invention is to provide a positive electrode for a lithium secondary battery, which is capable of improving the initial coulomb efficiency of a lithium secondary battery, and the like. A positive electrode for a lithium secondary b...

A lead acid storage battery according to the present invention uses a positive electrode grid body made of a lead-calcium-tin based alloy, and a negative electrode grid body made of either a lead-calcium based alloy or a lead-calcium-tin based alloy. The p...

There is provided a lead-acid battery in which the joint state between a lid body and a lid body cover can be checked based on both the joint state between a protruding portion in the periphery of a second exhaust hole and a joining portion of the lid body...

It is an object of the present invention to provide a battery in which current collecting connector 2 and 3 and groups 1d and 1e of metal foil of a power generating element 1 can be easily connected, respectively, and a method of manufacturing the same. Fi...

The invention provides a polyanion-based positive active material which can improve storage stability (especially, high temperature storage stability), charge and discharge cycle performance and the like of a lithium secondary battery, and a lithium second...

The present invention relates to a lead-acid battery including a positive electrode plate, a negative electrode plate, and an electrolyte solution, wherein the negative electrode plate includes a negative electrode current collector having a lattice-like g...

The present invention provides a process for producing a lithium secondary battery which employs charging method where a positive electrode upon charging has a maximum achieved potential of 4.3V (vs. Li/Li + ) or lower, comprising: charging the lithium sec...