CN-122025734-A - Battery and method for manufacturing battery

Abstract

The present invention relates to a battery and a method for manufacturing a battery. The battery includes an electrode laminate, a case accommodating the electrode laminate, and a heat conductive resin member disposed between the electrode laminate and the case. The length of the surface of the heat conductive resin member in contact with the electrode laminate is greater than the length of the surface of the electrode laminate in contact with the heat conductive resin member.

Inventors

• JIANG YUANQIANG

Assignees

• 丰田自动车株式会社

Dates

Publication Date

20260512

Application Date

20250825

Priority Date

20241111

Claims (6)

1. 1. A battery, comprising: An electrode laminate; a case accommodating the electrode laminate, and A heat conductive resin member disposed between the electrode laminate and the case, wherein The length of the surface of the heat conductive resin member that contacts the electrode laminate is greater than the length of the surface of the electrode laminate that contacts the heat conductive resin member.
2. 2. The battery according to claim 1, wherein the heat conductive resin member is provided so as to cover a surface of the electrode laminate in contact with the heat conductive resin member and a portion of both surfaces of the electrode laminate connected to the surface.
3. 3. The battery according to claim 1, further comprising a collector tab on a surface on a short side of the electrode laminate.
4. 4. The battery of claim 1, wherein the battery is a solid state battery.
5. 5. The battery of claim 1, wherein the housing is a can-shaped housing.
6. 6. A method for manufacturing the battery according to any one of claims 1 to 5, the method comprising bonding the electrode laminate and the heat conductive resin member under pressure.

Description

Battery and method for manufacturing battery Technical Field The present disclosure relates to a battery and a method for manufacturing the battery. Background An all-solid battery described in japanese unexamined patent application publication No. 2020-113496 (JP 2020-113496A) is one example of an all-solid battery in which an electrode laminate is enclosed in a case, and a heat transfer material is provided in contact with the electrode laminate inside the case. JP 2020-113496A discloses an all-solid-state battery cell in which an electrode laminate is enclosed in a casing. The electrode laminate includes a collector tab extending from an end thereof. The collector tab is connected to a terminal extending from an end of the all-solid battery cell. The first heat transfer material is disposed inside the case in contact with the electrode laminate and the case. Disclosure of Invention The related art battery in which the heat transfer material is disposed has a problem in that the position of the electrode laminate is changed when the heat transfer material is disposed inside the case. The present disclosure has been made in view of the above circumstances, and an object of the present disclosure is to provide a battery excellent in suppressing a positional change of an electrode laminate and a method for manufacturing the battery. Means for solving the above-described problems include the following. <1> A battery includes an electrode laminate, a case accommodating the electrode laminate, and a heat conductive resin member disposed between the electrode laminate and the case. The length of the surface of the heat conductive resin member in contact with the electrode laminate is greater than the length of the surface of the electrode laminate in contact with the heat conductive resin member. <2> In the battery according to <1>, the heat conductive resin member is provided to cover the surface of the electrode laminate in contact with the heat conductive resin member and a portion of both surfaces of the electrode laminate connected to the surface. <3> The battery according to <1> or <2> further comprises a collector tab on the surface of the electrode laminate on the short side. <4> The battery according to any one of <1> to <3> is a solid-state battery. <5> In the battery according to any one of <1> to <4>, the case is a can-shaped case. <6> A method for manufacturing the battery according to any one of <1> to <5>, comprising bonding the electrode laminate and the heat conductive resin member under pressure. According to the present disclosure, a battery excellent in suppressing a positional change of an electrode laminate and a method for manufacturing the battery can be provided. Drawings Features, advantages, and technical and industrial significance of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings, in which like numerals denote like elements, and in which: Fig. 1 is a schematic cross-sectional view of a state before bonding an electrode laminate and a heat conductive resin member under pressure at the time of manufacturing a battery of the related art; fig. 2 is a schematic cross-sectional view showing an example of a related-art battery; fig. 3 is a schematic cross-sectional view of a state before bonding an electrode laminate and a heat conductive resin member under pressure at the time of manufacturing an example of a battery according to the present disclosure, and Fig. 4 is a schematic cross-sectional view showing an example of a battery according to the present disclosure. Detailed Description Hereinafter, a battery and a method for manufacturing the battery according to the present disclosure will be described in detail with reference to the accompanying drawings. Each of the drawings shown below is a schematic view, and the size and shape of each portion are appropriately enlarged for understanding. Battery cell The battery according to the present disclosure includes an electrode laminate, a case accommodating the electrode laminate, and a heat conductive resin member disposed between the electrode laminate and the case. The length of the surface of the heat conductive resin member in contact with the electrode laminate is greater than the length of the surface of the electrode laminate in contact with the heat conductive resin member. The battery according to the present disclosure is preferably a solid-state battery, and more preferably an all-solid-state battery. The solid-state battery may include an all-solid battery including a solid electrolyte between electrodes as an electrolyte, and the solid electrolyte may contain an electrolyte solution in an amount of less than 10 mass% with respect to the total amount of the electrolyte. Hereinafter, a method for manufacturing a battery according to an embodiment of the present disclosure will be described with reference to the accompanying drawings. Fig. 1 is a schematic cross