Title:
SILOXANE DISPERSED CROSSLINKED SEPARATOR
Document Type and Number:
WIPO Patent Application WO/2022/092302
Kind Code:
A1
Abstract:
The present invention provides a separator for nonaqueous secondary batteries, said separator comprising a silicon-containing (Si-containing) molecule. With respect to an Si-containing image of this separator for nonaqueous secondary batteries as detected by time-of-flight secondary ion mass spectrometry (TOF-SIMS), the Voronoi area (mu) of the most frequent ones among Voronoi polygons that are obtained by Voronoi tessellation of the Si-containing image is within the range of from 1.0 μm2 to 17.5 μm2 or within the range of from 6.0 μm2 to 12.0 μm2, and the spread (σ) of the Voronoi area frequency distribution of the Si-containing image as detected by TOF-SIMS is within the range of from 0.5 μm2 to 8.5 μm2.
Inventors:
ZHANG XUN (JP)
IKEDA MAKOTO (JP)
AKITA YUSUKE (JP)
MATSUYAMA HAYATO (JP)
IKEDA MAKOTO (JP)
AKITA YUSUKE (JP)
MATSUYAMA HAYATO (JP)
Application Number:
PCT/JP2021/040166
Publication Date:
May 05, 2022
Filing Date:
October 29, 2021
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
H01M4/38; H01M4/505; H01M4/525; H01M10/052; H01M10/0569; H01M50/417; H01M50/449; H01M50/451; H01M50/463
Domestic Patent References:
| WO2020075866A1 | 2020-04-16 | |||
| WO2020067161A1 | 2020-04-02 | |||
| WO2014175252A1 | 2014-10-30 | |||
| WO2015012324A1 | 2015-01-29 |
Foreign References:
| JP2007265666A | 2007-10-11 | |||
| JP2020031047A | 2020-02-27 | |||
| JP2001176484A | 2001-06-29 | |||
| JPH04212264A | 1992-08-03 | |||
| JP2021036515A | 2021-03-04 | |||
| KR20200078407A | 2020-07-01 | |||
| JPS529854B2 | 1977-03-18 | |||
| JPS529858B2 | 1977-03-18 |
Other References:
XIAOMING ZHU, XIAOYU JIANG, XINPING AI, HANXI YANG, YULIANG CAO: "A Highly Thermostable Ceramic-Grafted Microporous Polyethylene Separator for Safer Lithium-Ion Batteries", APPLIED MATERIALS & INTERFACES, vol. 7, no. 43, 4 November 2015 (2015-11-04), US , pages 24119 - 24126, XP055694572, ISSN: 1944-8244, DOI: 10.1021/acsami.5b07230
"Silicone Polymer Special Feature, Organic Silicon Chemistry", JOURNAL OF THE SOCIETY OF RUBBER SCIENCE AND TECHNOLOGY, JAPAN, vol. 62, no. 12, 1989
"Volume Expansion during Lithiation of Amorphous Silicon Thin Film Electrodes Studied by In-Operando Neutron Reflectometry", J. PHYS. CHEM., vol. 118, 2014, pages 9395 - 9399
"Near-Shore Aggregation Mechanism of Electrolyte Decomposition Products to Explain Solid Electrolyte Interphase Formation", J. ELECTROCHEM. SOC., vol. 162, 2015, pages 2670 - 2678
"Coupled LiPF6 Decomposition and Carbonate Dehydrogenation Enhanced by Highly Covalent Metal Oxides in High-Energy Li-Ion Batteries", J. PHYS. CHEM., C, vol. 122, no. 48, 2018, pages 27368 - 27382
F. W. VAN. DE R. WEI, MACROMOL. CHEM., vol. 181, 1980, pages 2541
"Silicone Polymer Special Feature, Organic Silicon Chemistry", JOURNAL OF THE SOCIETY OF RUBBER SCIENCE AND TECHNOLOGY, JAPAN, vol. 62, no. 12, 1989
"Volume Expansion during Lithiation of Amorphous Silicon Thin Film Electrodes Studied by In-Operando Neutron Reflectometry", J. PHYS. CHEM., vol. 118, 2014, pages 9395 - 9399
"Near-Shore Aggregation Mechanism of Electrolyte Decomposition Products to Explain Solid Electrolyte Interphase Formation", J. ELECTROCHEM. SOC., vol. 162, 2015, pages 2670 - 2678
"Coupled LiPF6 Decomposition and Carbonate Dehydrogenation Enhanced by Highly Covalent Metal Oxides in High-Energy Li-Ion Batteries", J. PHYS. CHEM., C, vol. 122, no. 48, 2018, pages 27368 - 27382
F. W. VAN. DE R. WEI, MACROMOL. CHEM., vol. 181, 1980, pages 2541
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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