Energy storage device

Abstract

To provide a sheet-like energy storage device that can be curved or bent in at least one axial direction. do. [Solution] Multiple flexible sheet-like structures, each with one end fixed to a positive electrode tab. A positive electrode and multiple flexible, sheet-like negative electrodes, each with one end fixed to a negative electrode tab. The energy storage element has a positive electrode and a negative electrode, and a plurality of flexible sheet-like separators, and a positive electrode and a negative electrode. The poles overlap alternately with one of the separators in between, and the energy storage element is flexible. It is an energy storage device enclosed in an outer casing.

Claims

1. An energy storage device comprising an energy storage element, an outer casing, an electrolyte, a positive electrode tab, a negative electrode tab, a flexible support plate, and wiring installed on the support plate, The aforementioned energy storage element is a laminate in which the positive electrode and negative electrode are alternately stacked with a separator in between. The positive electrode tab comprises a first positive electrode tab and a second positive electrode tab. The negative electrode tab comprises a first negative electrode tab and a second negative electrode tab. The wiring is electrically connected to the first positive tab and the second positive tab. The positive electrode is electrically connected to the second positive electrode tab, The energy storage element is not in direct physical contact with the first positive electrode tab. An energy storage device wherein the second positive electrode tab and the second negative electrode tab each have a region in contact with the electrolyte, a region not in contact with the electrolyte, and a region in contact with the outer casing.

2. In claim 1, The support plate comprises a metal core and an insulating material covering the metal core, wherein the device is an energy storage device.

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