Lithium ion secondary battery having shape memory safety vent

一种二次电池、锂离子的技术，应用在二次电池、电池、电池组零部件等方向，能够解决限制电池安全性等问题，达到安全性提高、运行情况精确、改善安全性的效果

一种二次电池、锂离子的技术，应用在二次电池、电池、电池组零部件等方向，能够解决限制电池安全性等问题，达到安全性提高、运行情况精确、改善安全性的效果

CN1747198AInactive Publication Date: 2006-03-15SAMSUNG SDI CO LTD
1 Cites 21 Cited by

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Lithium ion secondary battery having shape memory safety vent
  • Lithium ion secondary battery having shape memory safety vent
  • Lithium ion secondary battery having shape memory safety vent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] In the following description and drawings, the same reference numerals denote the same or similar components, so repeated description of the same or similar components is omitted.

[0026] see now figure 1 , 2 and 3, the lithium ion secondary battery 100 includes: an electrode assembly 110, a can (or casing) 120 for accommodating the electrode assembly 110, an electrolytic solution (not shown) injected into the can 120 to enable movement of lithium ions, and a cover A cap assembly 140 on the can 120 and preventing the electrode assembly 110 and electrolyte from leaking to the outside, wherein the cap assembly 140 has a safety vent 148 adapted to be deformed at a predetermined temperature.

[0027] The electrode assembly 110 includes: a first electrode plate 111 to which a first active material (not shown) is attached, a second electrode plate 112 to which a second active material (not shown) is attached, and The separator 113 between 111 and 112, wherein the separator...

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 lithium ion secondary battery has a shape memory safety vent adapted to discharge internal compressed gas by temporarily being opened when the temperature reaches a predetermined level to avoid a swelling phenomenon of the battery and improve safety. The lithium ion secondary battery includes an electrode assembly having first and second electrode plates wound a number of times with a separator interposed between them; a can having an opening formed on a side thereof to contain the electrode assembly; and a cap plate adapted to cover the can and provided with a vent hole on a side thereof, to which a safety vent adapted to deform at a predetermined temperature and discharge gas from inside the can to the exterior is coupled.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and benefits from Korean Patent Application No. 10-2004-0071415 filed with the Korean Intellectual Property Office on September 7, 2004, the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to lithium ion secondary batteries, and more particularly, to lithium ion secondary batteries having a shape memory safety vent adapted to release compressed gas inside. Background technique [0004] A typical lithium-ion secondary battery includes: an electrode assembly consisting of a positive plate to which a positive active material is attached, a negative plate to which a negative active material is attached, and a battery between the positive and negative plates to avoid short circuits and allow only lithium ions to move. a separator wound into a known "jelly roll" structure; an electrolyte for moving lithium ions; a tank for ...

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
15 Mar 2006
Publication
CN1747198A
IPC
H01M2/12; H01M10/40; H01M10/05; H01M10/0525; H01M10/058; H01M10/0587; H01M50/147
CPC
H01M2/1282; Y02E60/12; H01M2200/10; Y02E60/122; H01M2/04; H01M2/1223; H01M10/0587; H01M10/0525
Inventors
洪懿善; 郭润泰