Title:
SLURRY FOR SECONDARY-BATTERY SEPARATOR, SECONDARY-BATTERY SEPARATOR, AND PRODUCTION PROCESSES THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/187780
Kind Code:
A1
Abstract:
[Problem] To provide: a slurry which is excellent in terms of dispersibility and dispersion stability and is suitable especially for secondary-battery separators; and a separator for batteries which are safe even when separator thickness reductions proceed.
[Solution] A slurry which comprises alumina particles, a binder, and a medium, wherein the alumina particles, when examined by Fourier transform infrared spectroscopy (FTIR), show an absorption peak at around 3,475 cm-1, the peak disappearing at 300ºC and higher. When the alumina particles are heated from room temperature to 1,000ºC and the gases evolved by the heating are analyzed by mass spectrometry (TPD-MS), then the amount of evolved water is 2,000 wt ppm or less. The alumina particles have a Mohs hardness of 6 or greater.
More Like This:
Inventors:
SHINBE YUKAKO (JP)
KANEDA TOSHIHIKO (JP)
MIZUNO NAOKI (JP)
KANEDA TOSHIHIKO (JP)
MIZUNO NAOKI (JP)
Application Number:
PCT/JP2017/008147
Publication Date:
November 02, 2017
Filing Date:
March 01, 2017
Export Citation:
Assignee:
TORAY BATTERY SEPARATOR FILM (JP)
TORAY INDUSTRIES (JP)
TORAY INDUSTRIES (JP)
International Classes:
C08L101/00; C08J3/20; C08K3/22; H01M50/409; H01M50/489
Domestic Patent References:
| WO2015194667A1 | 2015-12-23 |
Foreign References:
| JP2012221889A | 2012-11-12 | |||
| JP2016015268A | 2016-01-28 | |||
| JP2016062849A | 2016-04-25 | |||
| JP2010231957A | 2010-10-14 | |||
| JP2007290943A | 2007-11-08 |
Other References:
"Dictionary of inorganic compounds & complexes", KODANSHA LTD., 10 June 1997 (1997-06-10), pages 216 - 217
Download PDF:
Previous Patent: MICROPOROUS POLYOLEFIN MEMBRANE, SEPARATOR FOR BATTERY, AND PRODUCTION PROCESSES THEREFOR
Next Patent: POWER CONVERSION DEVICE
Next Patent: POWER CONVERSION DEVICE