Title:
POROUS MATERIAL AND PREPARATION METHOD THEREFOR, CURRENT COLLECTOR, SECONDARY BATTERY AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/201684
Kind Code:
A1
Abstract:
The present application provides a porous material and a preparation method therefor, a current collector, a secondary battery and a device. The porous material has pores having a first pore diameter and pores having a second pore diameter, wherein the second pore diameter is m nanometers, 10＜m＜400; and the first pore diameter is n microns, 0.5≤n≤20. The apparent volume of the porous material is V; the total pore volume of the pores having the second pore diameter is V2; the total pore volume of the pores having the first pore diameter is V1; and the porous material satisfies the following relationships: (V1+V2)/V=20%-90%, V2/V=15-70%, and V1/V＝5-70%.
Inventors:
WANG MANMAN (CN)
GE XIAOMING (CN)
GE XIAOMING (CN)
Application Number:
PCT/CN2022/088398
Publication Date:
October 26, 2023
Filing Date:
April 22, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
C22C3/00; A61L27/04; B22F3/11; C22C1/08; C22C9/00
Foreign References:
| CN108793211A | 2018-11-13 | |||
| CN111057982A | 2020-04-24 | |||
| CN106467939A | 2017-03-01 | |||
| JP2007277613A | 2007-10-25 | |||
| CN112048635A | 2020-12-08 |
Other References:
SOYARSLAN ET AL., ACTA MATERIALIA, vol. 149, 2018, pages 326
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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