18535191. NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME simplified abstract (SAMSUNG SDI CO., LTD.)

NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME

Organization Name

SAMSUNG SDI CO., LTD.

Inventor(s)

Jaewon Kim of Yongin-si (KR)

Yongseok Kim of Yongin-si (KR)

Jaehou Nah of Yongin-si (KR)

Youngugk Kim of Yongin-si (KR)

Heeyoung Chu of Yongin-si (KR)

Dae-Hyeok Lee of Yongin-si (KR)

Hyejin Kim of Yongin-si (KR)

Sojeong Yu of Yongin-si (KR)

NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - A simplified explanation of the abstract

This abstract first appeared for US patent application 18535191 titled 'NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME

Simplified Explanation: The patent application discloses a negative active material for a rechargeable lithium battery, which includes a silicon-carbon composite with graphene on its surface.

• The negative active material has a specific surface area ranging from about 1.6 m/g to about 2 m/g.
• The inclusion of graphene on the surface of the silicon-carbon composite enhances the performance of the material in lithium batteries.

Key Features and Innovation:

• Silicon-carbon composite material for lithium batteries.
• Graphene coating on the surface of the composite.
• Specific surface area of the material is optimized for battery performance.

Potential Applications: The technology can be used in rechargeable lithium batteries for various applications such as electric vehicles, portable electronics, and energy storage systems.

Problems Solved: The technology addresses the issue of low energy density and limited cycle life in traditional lithium battery materials.

Benefits:

• Improved battery performance.
• Enhanced energy density.
• Extended cycle life of lithium batteries.

Commercial Applications: The technology can be utilized in the production of high-performance lithium batteries for electric vehicles, consumer electronics, and grid energy storage systems.

Questions about Silicon-Carbon Composite for Lithium Batteries: 1. What are the key advantages of using a silicon-carbon composite material in lithium batteries? 2. How does the addition of graphene on the surface of the composite improve battery performance?

Frequently Updated Research: Ongoing research focuses on further optimizing the composition and structure of silicon-carbon composites for even better performance in lithium batteries.

Original Abstract Submitted

Disclosed are a negative active material for a rechargeable lithium battery and a rechargeable lithium battery. The negative active material for a rechargeable lithium battery includes a silicon-carbon composite; and graphene on a surface of the silicon-carbon composite, wherein a specific surface area of the negative active material is about 1.6 m/g to about 2 m/g.