Secondary batteries

Abstract

To provide a rechargeable battery suitable for personal digital assistants or wearable devices. , novel electronic devices having various external shapes, and secondary shapes suitable for those shapes Provides a battery. Due to a large, unintended external force, the secondary battery, or the secondary battery inside... The problem is that electronic devices placed in this location are bent beyond their limits, resulting in a radius of curvature that becomes too small. It can be resolved. [Solution] Inside the secondary battery, a structure is formed in which a separator is sandwiched between the positive and negative electrodes. Between this structure and the outer casing, there is a temperature range near the surface temperature of human skin (30°C to 37°C). Then, a thermoplastic material that becomes soft is provided.

Claims

[Claim 1] Having an outer casing, Having an internal structure that includes at least a positive electrode, a negative electrode, and a separator, A secondary battery having an object between the outer casing and the internal structure that becomes softer at temperatures between 30°C and 37°C than at room temperature.

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