WO2023230872 - MODIFIED CURRENT COLLECTOR FOR SECONDARY BATTERY
National phase entry is expected:
Publication Number
WO/2023/230872
Publication Date
07.12.2023
International Application No.
PCT/CN2022/096333
International Filing Date
31.05.2022
Title **
[English]
MODIFIED CURRENT COLLECTOR FOR SECONDARY BATTERY
[French]
COLLECTEUR DE COURANT MODIFIÉ POUR BATTERIE SECONDAIRE
Applicants **
GUANGDONG HAOZHI TECHNOLOGY CO. LIMITED
GRST INTERNATIONAL LIMITED
Inventors
HO, Kam Piu
JIANG, Yingkai
HUEN, Priscilla
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
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| Number of Office Actions | * |
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International Searching Authority |
CNIPA
* |
| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2027 | |
| EPO | Filing, Examination, Granting | 15098 | |
| Japan | Filing, Examination, Granting | 2327 | |
| South Korea | Filing, Examination, Granting | 2357 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
26,549
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
Provided herein is a modified current collector for a secondary battery, comprising a substrate and a conductive layer applied on one side or both sides of the substrate, wherein the conductive layer comprises a conductive material and binder material, wherein the binder material comprises a copolymer. Also provided herein is an electrode for a secondary battery, comprising the modified current collector and an electrode layer, wherein the electrode layer is located on the surface of the conductive layer (s). Within an electrode comprising the modified current collector disclosed herein, the presence of the conductive layer inhibits corrosion of the substrate and reduces interfacial resistance between the electrode layer and the substrate. Consequently, batteries comprising such an electrode exhibit exceptional electrochemical performance.[French]
L'invention concerne un collecteur de courant modifié pour une batterie secondaire, comprenant un substrat et une couche conductrice appliquée sur un côté ou sur les deux côtés du substrat, la couche conductrice comprenant un matériau conducteur et un matériau liant, le matériau liant comprenant un copolymère. L'invention concerne également une électrode pour une batterie secondaire, comprenant le collecteur de courant modifié et une couche d'électrode, la couche d'électrode étant située sur la surface de la ou des couches conductrices. Dans une électrode comprenant le collecteur de courant modifié, la présence de la couche conductrice inhibe la corrosion du substrat et réduit la résistance interfaciale entre la couche d'électrode et le substrat. Par conséquent, les batteries qui comprennent une telle électrode présentent des performances électrochimiques remarquables.