COMPOSITE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF - GUANGDONG BRUNP RECYCLING TECHNOLOGY CO LTD

Title:

COMPOSITE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Document Type and Number:

WIPO Patent Application WO/2023/056774

Kind Code:

A1

Abstract:

A composite material, and a preparation method therefor and the use thereof. The composite material comprises carbon fibers and carbonated polyaniline particles attached to the carbon fibers. Pores are present in the composite material, and the pore diameter of the pores is less than or equal to 4 nm. By introducing a hierarchical structure and a nitrogen-containing structure (pyridine nitrogen, pyrrole nitrogen, nitric oxide, etc.), the electrochemical performance of the material can be effectively improved; and the nitrogen-doped composite material is carbonized and activated to synthesize a porous carbon material containing the hierarchical pore structure, such that the migration and storage of lithium ions are facilitated, and the capacity of the material is improved.

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Inventors:

ZHANG ZHENHUA (CN)
LI CHANGDONG (CN)
FAN XIA (CN)
MAO LINLIN (CN)
RUAN DINGSHAN (CN)
CAI YONG (CN)

Application Number:

PCT/CN2022/109233

Publication Date:

April 13, 2023

Filing Date:

July 29, 2022

Export Citation:

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Assignee:

GUANGDONG BRUNP RECYCLING TECHNOLOGY CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
HUNAN BRUNP EV RECYCLING CO LTD (CN)

International Classes:

H01M4/36; H01M4/583

Foreign References:

CN114068893A	2022-02-18
CN106229161A	2016-12-14
JP2007042603A	2007-02-15

Other References:

ILLA MANI PUJITHA, PATHAK ANIL D, SHARMA CHANDRA S., KHANDELWAL MUDRIKA: "Bacterial Cellulose–Polyaniline Composite Derived Hierarchical Nitrogen-Doped Porous Carbon Nanofibers as Anode for High-Rate Lithium-Ion Batteries", ACS APPLIED ENERGY MATERIALS, vol. 3, no. 9, 28 September 2020 (2020-09-28), pages 8676 - 8687, XP093055749, ISSN: 2574-0962, DOI: 10.1021/acsaem.0c01254

Attorney, Agent or Firm:

JIAQUAN IP LAW (CN)

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