Shin-etsu chemical co., ltd. (20240339608). NEGATIVE ELECTRODE simplified abstract
Contents
NEGATIVE ELECTRODE
Organization Name
Inventor(s)
Takakazu Hirose of Annaka-shi (JP)
Kohta Takahashi of Takasaki-shi (JP)
Yusuke Osawa of Annaka-shi (JP)
Reiko Sakai of Takasaki-shi (JP)
Masaki Murayama of Annaka-shi (JP)
NEGATIVE ELECTRODE - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240339608 titled 'NEGATIVE ELECTRODE
The negative electrode in this patent application features a roughened surface on the negative electrode current collector, with a negative electrode active material layer on top. The active material layer has a unique multilayer structure, with a central portion of each layer containing a composite compound of silicon, lithium, and oxygen, along with regions of varying oxygen content.
- The negative electrode active material layer has a multilayer structure with a composite compound of silicon, lithium, and oxygen in the central portion of each layer.
- The layer also contains regions with different oxygen content, contributing to the overall performance of the electrode.
- The average width of the regions with varying oxygen content is 10 nm or less, ensuring precise control over the composition.
- This design allows for a significant increase in capacity while maintaining excellent battery characteristics.
- The roughened surface of the negative electrode current collector enhances the overall performance of the electrode.
Potential Applications: - Lithium-ion batteries - Electric vehicles - Portable electronics
Problems Solved: - Increased capacity in batteries - Maintaining excellent battery characteristics
Benefits: - Enhanced battery performance - Longer battery life - Improved energy storage capabilities
Commercial Applications: Title: Advanced Negative Electrode for High-Performance Batteries This technology could revolutionize the battery industry by improving the capacity and performance of lithium-ion batteries, making them more efficient for various applications such as electric vehicles and portable electronics.
Questions about the technology: 1. How does the multilayer structure of the negative electrode active material layer contribute to the overall performance of the battery? 2. What specific benefits does the roughened surface of the negative electrode current collector provide for the battery's performance?
Original Abstract Submitted
a negative electrode includes a negative electrode current collector with a surface having roughened surface, and a negative electrode active material layer provided on the negative electrode current collector, in which the negative electrode active material layer has a multilayer structure, in the multilayer structure, a central portion of each layer in a thickness direction includes a composite compound containing silicon, lithium, and oxygen, a plurality of first regions having a lower amount of oxygen, and a plurality of second regions having a higher amount of oxygen than the first regions, and an average width of each of a maximum width in the first regions and a maximum width in the second regions is 10 nm or less. thereby the negative electrode can significantly increase a capacity while maintaining excellent battery characteristics.
