Patent ID: 9508979
Filing Date: 2016-11-29
CPC Classification: B60L,H01M,Y02E,Y02P,Y02T

Claim Text:
1. A battery comprising: a positive electrode; a negative electrode including a negative electrode active material layer that is formed on at least one surface of a negative electrode collector; and an electrolyte, wherein, a thickness of the negative electrode active material layer per one surface of the negative electrode collector is 50 μm or more and 100 μm or less, in the negative electrode active material layer from the negative electrode collector up to ½ of the thickness of the negative electrode active material layer in a surface direction of the negative electrode active material layer, an orientation degree A expressed as (peak intensity of carbon 002 face/peak intensity of carbon 110 face) that is a peak intensity ratio of a carbon 002 face and a carbon 110 face measured by an X-ray diffraction method is 100 or more and 500 or less, in the entire negative electrode active material layer, an orientation degree B expressed as (peak intensity of carbon 002 face/peak intensity of carbon 110 face) that is the peak intensity ratio of the carbon 002 face and the carbon 110 face measured by the X-ray diffraction method is 150 or more and 1,000 or less, and (orientation degree B/orientation degree A) that is a ratio of the orientation degree A and the orientation degree B is 1.5 or more and 2.0 or less.