Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

battery system

A technology for battery packs and battery boxes, applied in the field of battery pack systems, which can solve problems such as rising battery internal pressure, affecting battery performance, and destroying battery boxes, achieving the effects of less demand, avoiding the danger of burning, and enhancing the cooling effect

Active Publication Date: 2017-02-22
MICROVAST POWER SYST CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As the main energy storage device of electric vehicles, the battery cell is generally formed by connecting multiple batteries in series and parallel. During the charging process of the lithium-ion battery, the aprotic solvent in the electrolyte will react on the interface between the electrode and the electrolyte. These reactions On the one hand, a passivation film covering the surface of the electrode is formed, and at the same time, gases such as hydrogen, hydrocarbons, carbon monoxide, and carbon dioxide are produced. These gases will cause the internal pressure of the battery to increase, and the problem of gas swelling will seriously affect the performance of the battery. Cycle performance and battery safety performance), when the gas in the battery accumulates to a certain extent, the packaging material of the battery cell will rupture, and the leaked flammable gas will fill the entire battery box. If this process lasts for a long time, the battery box will The gas in the battery box will break through the seal of the battery box and eventually destroy the battery box, so that the air enters the battery box, and it is very easy to cause danger or even explode when encountering flammable gas in the battery box

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • battery system
  • battery system
  • battery system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] Such as Figure 1-Figure 5 As shown, the battery box 3 is composed of a box body 32 and a cover plate 31, and a sealing rubber pad 33 is used between the box body 32 and the cover plate 31 to seal the gap between the box body 32 and the cover plate 31, which can effectively seal the box body. Parts in 32 are isolated from air. A sheet battery is placed in the box 32, and several sheet batteries are stacked together to form a battery cell 1, and a spacer 6 is clamped between every two adjacent battery cells 1. In this solution, the spacer 6 Use a woven net, which is a plastic woven net whose warp and latitude lines are not on the same plane as the isolation component 6, which can well separate the battery cells 1, and can accelerate the circulation of the sealing solution 2, making the electrolyte more stable. It is easy...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A battery pack system, including several battery cells, a sealing liquid and a battery box containing the sealing liquid, the battery cells are soaked in the sealing liquid, the battery box is composed of a box body and a cover plate, and a sealing liquid outlet is arranged on the box body And a sealing liquid inlet, the outlet is connected with the inlet through the circulation pump and the buffer tank to form a circulation channel, and the detection part is installed in the buffer tank, when the leakage occurs in the battery unit, when the sealing liquid mixed with the electrolyte flows through the buffer tank The detected part is detected, and the detection part gives a feedback signal. After adopting the solution provided by the present invention, the leaked electrolyte can be sealed in the flame-retardant sealing liquid, preventing the electrolyte from contacting with the air, and causing danger of combustion; detecting whether the battery cells in the battery box are broken in the first time , and a warning is issued to improve the safety of the battery box.

Description

technical field [0001] The invention relates to a battery pack system, in particular to a battery pack system capable of detecting battery leakage. Background technique [0002] At present, battery-powered electric vehicles and electric buses are gradually replacing traditional cars and buses. The battery cell is the main energy storage device on the electric vehicle, and the battery box, as a device for loading the battery cell, is a key component of the electric vehicle, which directly affects the performance of the battery cell and thus affects the performance of the electric vehicle. Due to its excellent power output characteristics and long life, lithium-ion power batteries are currently widely used in electric vehicles. [0003] As the main energy storage device of electric vehicles, the battery cell is generally formed by connecting multiple batteries in series and parallel. During the charging process of the lithium-ion battery, the aprotic solvent in the electrolyt...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/48H01M10/613H01M10/625H01M2/10H01M50/202H01M50/244
CPCH01M10/4228H01M10/48H01M50/20Y02E60/10
Inventor 杨从明
Owner MICROVAST POWER SYST CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products