Patent ID: 9748560
Date: 2017-08-29
CPC Classifications: H01M,Y02E,Y02P

Claim:
1. A negative electrode for an alkaline secondary battery comprising a current collecting substrate having a substrate containing iron, wherein the current collecting substrate does not have a conductive protecting layer, or the current collecting substrate has a conductive protecting layer having a thickness of 3 μm or less on the current collecting substrate, or the current collecting substrate has, on the current collecting substrate, a conductive protecting layer having defects, wherein the negative electrode contains magnesium or a magnesium compound and a hydrogen storage alloy, and wherein the content of magnesium or the magnesium compound is 0.1 to 3.0% by mass with respect to the total amount of the hydrogen storage alloy and magnesium or the magnesium compound in the negative electrode.