Energy-storage device and electricity-consumption apparatus

Patent metadata

Field	Value
Publication number	US-2025007136-A1
Application number	US-202418617308-A
Country	US
Kind code	A1
Filing date	Mar 26, 2024
Priority date	Jun 30, 2023
Publication date	Jan 2, 2025
Grant date	—

Abstract

An energy-storage device is provided in the disclosure. The energy-storage device includes an electrode assembly and a housing assembly. The housing assembly includes a housing and an electrolyte pipeline. The electrolyte pipeline and the electrode assembly are both mounted inside the housing. The electrolyte pipeline is located between the electrode assembly and the housing and includes an electrolyte inlet pipe and an electrolyte outlet pipe. The electrolyte inlet pipe is located at one side of the electrode assembly and in communication with an interior of the housing. The electrolyte outlet pipe is fixedly mounted to and in communication with the electrolyte inlet pipe. The electrolyte outlet pipe defines multiple electrolyte outlet holes that are arranged at intervals in sequence.

First claim

What is claimed is:

1 . An energy-storage device, comprising an electrode assembly and a housing assembly, wherein
the housing assembly comprises a housing and an electrolyte pipeline, and the electrolyte pipeline and the electrode assembly are both mounted inside the housing; the electrolyte pipeline is located between the electrode assembly and the housing and comprises an electrolyte inlet pipe and an electrolyte outlet pipe, the electrolyte inlet pipe is located at one side of the electrode assembly and in communication with an interior of the housing, and the electrolyte outlet pipe is fixedly mounted to and in communication with the electrolyte inlet pipe; and the electrolyte outlet pipe defines a plurality of electrolyte outlet holes that are arranged at intervals in sequence, each of the plurality of electrolyte outlet holes extends, in a thickness direction of the electrolyte outlet pipe, through a pipe wall of the electrolyte outlet pipe at one side of the electrolyte outlet pipe, and each of the plurality of electrolyte outlet holes has an opening facing the electrode assembly of the energy-storage device.

2 . The energy-storage device of claim 1 , wherein
the electrolyte inlet pipe is implemented as two electrolyte inlet pipes, wherein the two electrolyte inlet pipes are spaced apart from each other, one of the two electrolyte inlet pipes is located at one of two opposite sides of the electrode assembly of the energy-storage device, and the other of the two electrolyte inlet pipes is located at the other of the two opposite sides of the electrode assembly of the energy-storage device; and the electrolyte outlet pipe is implemented as a plurality of electrolyte outlet pipes, wherein the plurality of electrolyte outlet pipes are arranged at intervals in sequence and are all located at one side of the two electrolyte inlet pipes, and each of the plurality of electrolyte outlet pipes is in communication with the two electrolyte inlet pipes.

3 . The energy-storage device of claim 2 , wherein a number of the plurality of electrolyte outlet pipes ranges from 6 to 10.

4 . The energy-storage device of claim 2 , wherein
for each of the two electrolyte inlet pipes, the electrolyte inlet pipe defines a plurality of mounting holes arranged at intervals in a length direction of the electrolyte inlet pipe, wherein each of the plurality of mounting holes extends, in a thickness direction of the electrolyte inlet pipe, through a pipe wall of the electrolyte inlet pipe at one side of the electrolyte inlet pipe; and for each of the plurality of electrolyte outlet pipes, the electrolyte outlet pipe comprises a first portion and two second portions, wherein the first portion faces the electrode assembly of the energy-storage device in a thickness direction of the energy-storage device and defines the plurality of electrolyte outlet holes; one of the two second portions is fixedly connected to one of two opposite ends of the first portion, the other of the two second portions is fixedly connected to the other of the two opposite ends of the first portion, and the two second portions are both in communication with the first portion; in a width direction of the energy-storage device, one of the two second portions is located at one of two opposite sides of the electrode assembly of the energy-storage device, and the other of the two second portions is located at the other of the two opposite sides of the electrode assembly of the energy-storage device; and each of the two second portions extends in a direction away from the first portion, one end of each of the two second portions away from the first portion is fixedly mounted to one of the plurality of mounting holes, and the two second portions both are in communication with the electrolyte inlet pipe.

5 . The energy-storage device of claim 1 , wherein a diameter of each of the plurality of electrolyte outlet holes ranges from 0.5 mm to 1 mm.

6 . The energy-storage device of claim 1 , wherein the housing defines an accommodating cavity, the electrode assembly and the electrolyte pipeline are both accommodated in the accommodating cavity, an electrolyte is accommodated in the accommodating cavity, at least part of the electrode assembly is immersed in the electrolyte, and at least part of the electrolyte inlet pipe is immersed in the electrolyte.

7 . The energy-storage device of claim 6 , wherein an external pressure of the electrolyte inlet pipe is greater than an internal pressure of the electrolyte inlet pipe when the electrolyte is consumed.

8 . The energy-storage device of claim 7 , wherein a difference between the external pressure of the electrolyte inlet pipe and the internal pressure of the electrolyte inlet pipe ranges from 0.2MPa and 0.3 MPa.

9 . The energy-storage device of claim 1 , wherein in the thickness direction of the energy-storage device, a ratio of a height of the electrolyte inlet pipe to a height of the electrode assembly ranges from 1/6 to 1/3.

10 . The energy-storage device of claim 1 , further comprising an end cover assembly, wherein
the end cover assembly is mounted to one side of the housing in a length direction of the housing; and the housing assembly further comprises an insulation film, wherein the insulation film is disposed inside the housing and defines an opening on one side of the insulation film facing the end cover assembly, the electrode assembly and the electrolyte pipeline are both arranged inside the insulation film, and the electrolyte pipeline is located between the electrode assembly and the insulation film.

11 . The energy-storage device of claim 10 , wherein
the housing comprises a placement surface and an appearance surface, wherein the appearance surface is opposite to the placement surface in a thickness direction of the energy-storage device; and the end cover assembly is provided with a placement indicator, wherein the placement indicator is on one side of the end cover assembly close to the placement surface.

12 . An electricity-consumption apparatus, comprising an energy-storage device configured to power the electricity-consumption apparatus, wherein
the energy-storage device comprises an electrode assembly and a housing assembly, wherein the housing assembly comprises a housing and an electrolyte pipeline, and the electrolyte pipeline and the electrode assembly are both mounted inside the housing; the electrolyte pipeline is located between the electrode assembly and the housing and comprises an electrolyte inlet pipe and an electrolyte outlet pipe, the electrolyte inlet pipe is located at one side of the electrode assembly and in communication with an interior of the housing, and the electrolyte outlet pipe is fixedly mounted to and in communication with the electrolyte inlet pipe; and the electrolyte outlet pipe defines a plurality of electrolyte outlet holes that are arranged at intervals in sequence, each of the plurality of electrolyte outlet holes extends, in a thickness direction of the electrolyte outlet pipe, through a pipe wall of the electrolyte outlet pipe at one side of the electrolyte outlet pipe, and each of the plurality of electrolyte outlet holes has an opening facing the electrode assembly of the energy-storage device.

13 . The electricity-consumption apparatus of claim 12 , wherein the electrolyte inlet pipe is implemented as two electrolyte inlet pipes, wherein the two electrolyte inlet pipes are spaced apart from each other, one of the two electrolyte inlet pipes is located at one of two opposite sides of the electrode assembly of the energy-storage device, and the other of the two electrolyte inlet pipes is lo

Assignees

• Xiamen Hithium Energy Storage Tech Co Ltd

Inventors

• Hu Yuelin
• Xu Weidong
• Tan Jiben

Classifications

• H01M50/682 Primary

  accommodated in battery or cell casings · CPC title

• H01M2220/10

  Batteries in stationary systems, e.g. emergency power source in plant · CPC title

• H01M50/15 Primary

  for prismatic or rectangular cells (H01M50/153 takes precedence) · CPC title

• H01M50/103

  prismatic or rectangular (H01M50/109, H01M50/11 take precedence) · CPC title

• H01M50/59

  characterised by the protection means · CPC title