Title:
LITHIUM ION BATTERY
Document Type and Number:
WIPO Patent Application WO/2018/043431
Kind Code:
A1
Abstract:
This lithium ion battery E is provided with a positive electrode terminal 1, a negative electrode terminal 2 and a battery case 3 that is an airtight container; and an electrode body 10 is contained within the battery case 3. The electrode body 10 comprises a positive electrode collector 11, an electrode plate 12 for positive electrodes, a negative electrode collector 13 and an electrode plate 14 for negative electrodes, while having a structure wherein the electrode plate 12 for positive electrodes and the electrode plate 14 for negative electrodes are laminated with a separator 15 being interposed therebetween. A metal ion removal agent is arranged in a void space within the battery case 3. This metal ion removal agent has a transfer metal ion adsorption capacity, and preferably has a moisture removal ability; and it is preferable that this metal ion removal agent is composed of a zeolite, especially an A-zeolite ion-exchanged by Ca. This lithium ion battery is capable of capturing transition metal ions released from a positive electrode active material, thereby having improved battery life characteristics.
Inventors:
NOZUE MITSURU (JP)
YAGI MINORU (JP)
YAGI MINORU (JP)
Application Number:
PCT/JP2017/030797
Publication Date:
March 08, 2018
Filing Date:
August 28, 2017
Export Citation:
Assignee:
KURITA WATER IND LTD (JP)
International Classes:
H01M10/052; H01M10/0567; H01M10/0568
Domestic Patent References:
| WO2015136722A1 | 2015-09-17 |
Foreign References:
| JPH11260416A | 1999-09-24 | |||
| JP2015022907A | 2015-02-02 | |||
| JP2000077103A | 2000-03-14 | |||
| JP2015095316A | 2015-05-18 | |||
| JPH07262999A | 1995-10-13 | |||
| JP2005243458A | 2005-09-08 |
Attorney, Agent or Firm:
HAYAKAWA Yuzi et al. (JP)
Download PDF: