Magnesium secondary battery and method for manufacturing magnesium secondary battery
AssigneeThe Furukawa Battery Co., Ltd.
InventorNaoki TAKEGUCHI
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Abstract
A magnesium secondary battery includes: a positive electrode; a negative electrode having a magnesium layer made of a eutectic magnesium alloy; a separator; and an electrolytic solution, in which in powder X-ray diffraction measurement of the negative electrode using a CuKα ray, when an intensity ratio Y obtained from a diffraction peak representing a (100) plane within a range of 2θ=32°±5° and a diffraction peak representing a (002) plane within a range of 2θ=35°±5° is defined as a diffraction peak intensity ratio of (100)/(002), 15<Y is satisfied.
Claims8
A magnesium secondary battery comprising:
- a positive electrode;
- a negative electrode having a magnesium layer made of a eutectic magnesium alloy;
- a separator;
- and
- an electrolytic solution, wherein
- in powder X-ray diffraction measurement of the negative electrode using a Cukα ray, when an intensity ratio Y obtained from a diffraction peak representing a (100) plane within a range of 2θ=32°±5° and a diffraction peak representing a (002) plane within a range of 2θ=35°±5° is defined as a diffraction peak intensity ratio of (100)/(002), 15<Y is satisfied.
A method for manufacturing a magnesium secondary battery including a positive electrode, a negative electrode having a magnesium layer made of a magnesium alloy, a separator, and an electrolytic solution, the method comprising
- an activation step of performing charging and discharging at 5 mA/cm2 or more.
Dependencies are inferred from the claim text.