Secondary Battery, Battery Module Having Same, Battery Pack, And Device
Patent No. EP3916848 (titled "Secondary Battery, Battery Module Having Same, Battery Pack, And Device") was filed by Contemporary Amperex Technology on Nov 10, 2020. The application was issued on Feb 22, 2023.
Patent Summary
A lithium-ion battery with improved stability and performance, comprising a negative electrode comprising silicon-based material, a binder comprising polyacrylate, and a positive electrode comprising graphite. The polyacrylate binder enhances the adhesion of the silicon-based material during charge-discharge cycles, preventing electrode degradation and maintaining battery performance.
Patent Family
Patent Oppositions
Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
Dossier Documents
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
Date
Description
Get instant alerts for new documents
EP3916848
- Application Number
- EP20895520A
- Filing Date
- Nov 10, 2020
- Status
- Granted And Under Opposition
- Jan 20, 2023
- Publication Date
- Feb 22, 2023
- External Links
- Slate, Register , Google Patents