CN-224232777-U - Power storage device

Abstract

The power storage device of the present utility model is mounted on a vehicle, and includes a stacked body formed by stacking power storage modules in the up-down direction, and a storage case for storing the stacked body. The housing case includes a top plate located on an upper surface of the housing case, a bottom plate located on a lower surface of the housing case, a peripheral wall connecting the top plate and the bottom plate, and a holding member. The laminate includes an upper surface, a lower surface, and a peripheral surface connecting the upper surface and the lower surface. The holding member has a holding standing wall and a holding flange. The holding standing wall is formed to cover the peripheral surface, and the holding flange is provided to the holding standing wall and fixed to the peripheral wall.

Inventors

• AIJIMA SHINGO
• INOUE SHIGEYUKI

Assignees

• 丰田自动车株式会社

Dates

Publication Date

20260512

Application Date

20250401

Priority Date

20240418

Claims (5)

1. 1. An electric storage device mounted on a vehicle, wherein, The power storage device includes a laminate formed by stacking power storage modules in the up-down direction, and a housing case housing the laminate, The housing case includes a top plate located on an upper surface of the housing case, a bottom plate located on a lower surface of the housing case, a peripheral wall connecting the top plate and the bottom plate, and a holding member, The laminate includes an upper surface and a lower surface, and a peripheral surface connecting the upper surface and the lower surface, The holding member has a holding standing wall and a holding flange, The holding and rising wall is formed to cover the peripheral surface, The holding flange is provided to the holding rising wall and is fixed to the peripheral wall.
2. 2. The power storage device according to claim 1, wherein, The holding and standing wall includes a1 st side wall and a2 nd side wall arranged in the width direction, The holding flange is fixed to at least one of the 1 st side wall and the 2 nd side wall.
3. 3. The power storage device according to claim 1 or 2, wherein, The holding member is further provided with a covering member, The coating member is formed to extend annularly from at least one of the end portions of the holding/rising wall arranged in the up-down direction, and is formed to cover an outer edge portion of at least one of the upper surface and the lower surface of the laminated body.
4. 4. The power storage device according to claim 3, wherein, The cladding member includes an upper end cladding portion connected to an upper end of the holding rising wall, The upper end coating portion is bonded to a portion of the top plate corresponding to the upper end coating portion in the up-down direction.
5. 5. The power storage device according to claim 1 or 2, wherein, The holding member is bonded to the laminate.

Description

Power storage device Technical Field The present disclosure relates to an electric storage device. Background For example, japanese patent application laid-open No. 2024-00753 discloses a structure of a side portion of a bipolar battery mounted on a lower portion of a vehicle. The battery of japanese patent application laid-open No. 2024-00753 is sensitive to impacts from the surroundings, and there is room for improvement in protecting the battery from impacts from the surroundings. Disclosure of utility model The present disclosure has been made to solve the above-described problems, and an object thereof is to provide a power storage device capable of suppressing damage due to impact from the surroundings. The power storage device according to claim 1 of the present disclosure is a power storage device mounted on a vehicle, wherein the power storage device includes a laminate formed by stacking power storage modules in an up-down direction, and a housing case housing the laminate, the housing case including a top plate located on an upper surface of the housing case, a bottom plate located on a lower surface of the housing case, a peripheral wall connecting the top plate and the bottom plate, and a holding member, the laminate including an upper surface and a lower surface, and a peripheral surface connecting the upper surface and the lower surface, the holding member having a holding rising wall and a holding flange, the holding rising wall being formed to cover the peripheral surface, the holding flange being provided to the holding rising wall and being fixed to the peripheral wall. A holding and standing wall in an electrical storage device according to claim 1 of the present disclosure includes a 1 st side wall and a 2 nd side wall aligned in a width direction, and a holding flange is fixed to at least one of the 1 st side wall and the 2 nd side wall. The power storage device according to claim 1 or claim 2 further includes a cover member formed to extend annularly from at least one of the end portions of the holding upright wall arranged in the up-down direction, and to cover an outer edge portion of the laminate when the laminate is viewed from a position away from the laminate in the up-down direction. The covering member in the power storage device according to claim 1 of the present disclosure includes an upper end covering portion connected to the upper end of the holding rising wall, and the upper end covering portion is bonded to a portion of the top plate corresponding to the upper end covering portion in the up-down direction. The holding member in the power storage device according to claim 1 of the present disclosure is bonded to the laminate. According to the power storage device of the present disclosure, damage to the power storage device can be suppressed even when an impact from the surroundings is applied. Features, advantages, and technical and industrial significance of exemplary embodiments of the present utility model are described below with reference to the accompanying drawings, in which like reference numerals refer to like elements. Drawings Fig. 1 is a plan view showing a schematic configuration of an electric storage device according to the present embodiment. Fig. 2 is a cross-sectional view of section II-II shown in fig. 1. Fig. 3 is a schematic perspective view of the stacked body and the holding member in the power storage device of fig. 1. Detailed Description Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals, and description thereof will not be repeated. Fig. 1 is an exploded perspective view schematically showing a vehicle mounted with a power storage device according to the present embodiment. The vertical direction H shown in fig. 1 indicates the vertical direction of the vehicle 1. The width direction W represents the vehicle width direction of the vehicle 1. The front-rear direction D indicates the front-rear direction of the vehicle 1. The vehicle 1 includes a vehicle body 2 and a power storage device 3. The vehicle 1 includes, for example, a Plug-in Hybrid ELECTRIC VEHICLE (PHEV), a Battery ELECTRIC VEHICLE (BEV), or a Fuel cell electric vehicle (FCEV, fuel CELL ELECTRIC VEHICLE). The vehicle body 2 includes a lower vehicle body 4 and a common trim panel 5. The lower body 4 has a pair of side frames 4a, 4b aligned in the width direction W. The common decorative plate 5 is disposed at a position facing the lower vehicle body 4 with the power storage device 3 interposed therebetween in the vertical direction H. The common trim 5 is fixed to the lower body 4. The power storage device 3 is, for example, a device for storing electric power for driving the vehicle 1. The power storage device 3 is fixed to the vehicle body 2 by being fastened to a pair of side frames 4a, 4b, respectively. Fig. 2 is