18013932. ALL SOLID SECONDARY BATTERY, ALL SOLID SECONDARY BATTERY STRUCTURE AND PREPARATION METHOD FOR ALL SOLID SECONDARY BATTERY simplified abstract (SAMSUNG SDI CO., LTD.)

ALL SOLID SECONDARY BATTERY, ALL SOLID SECONDARY BATTERY STRUCTURE AND PREPARATION METHOD FOR ALL SOLID SECONDARY BATTERY

Organization Name

SAMSUNG SDI CO., LTD.

Inventor(s)

Jeonghoon Kim of Yongin-si, Gyeonggi-do (KR)

Jongdae Kim of Yongin-si, Gyeonggi-do (KR)

Mansoo Shin of Yongin-si, Gyeonggi-do (KR)

Ikhwan Cho of Yongin-si, Gyeonggi-do (KR)

Youngseok Jeong of Yongin-si, Gyeonggi-do (KR)

Daesik Oh of Yongin-si, Gyeonggi-do (KR)

ALL SOLID SECONDARY BATTERY, ALL SOLID SECONDARY BATTERY STRUCTURE AND PREPARATION METHOD FOR ALL SOLID SECONDARY BATTERY - A simplified explanation of the abstract

This abstract first appeared for US patent application 18013932 titled 'ALL SOLID SECONDARY BATTERY, ALL SOLID SECONDARY BATTERY STRUCTURE AND PREPARATION METHOD FOR ALL SOLID SECONDARY BATTERY

The abstract describes an all-solid secondary battery with a unique structure and materials for improved performance and safety.

• The battery includes a stack with positive and negative electrode layers separated by a solid electrolyte layer.
• The positive electrode layer has a current collector and an active material layer.
• The negative electrode layer includes a current collector and an active material layer without solid electrolyte or with a minimal amount.
• The exterior casing material has a cushioning layer for protection and sealing of the stack.

Potential Applications: - Energy storage for electric vehicles - Portable electronic devices - Renewable energy storage systems

Problems Solved: - Enhanced battery performance - Improved safety with solid electrolyte layer - Longer lifespan due to optimized electrode materials

Benefits: - Higher energy density - Safer operation - Longer cycle life

Commercial Applications: Title: Advanced All-Solid State Battery for Energy Storage Solutions Description: This technology can be utilized in electric vehicles, consumer electronics, and grid energy storage systems, offering a more reliable and efficient power source.

Questions about the technology: 1. How does the solid electrolyte layer improve the safety of the battery? - The solid electrolyte layer prevents dendrite formation and thermal runaway, reducing the risk of short circuits and fires. 2. What are the key advantages of using all-solid materials in the battery design? - All-solid materials eliminate the need for liquid electrolytes, enhancing stability and safety while increasing energy density and cycle life.

Original Abstract Submitted

An all solid secondary battery includes: a stack including positive and negative electrode layers, and a solid electrolyte layer between the electrode layers, the positive electrode layer includes a positive electrode current collector and a positive electrode active material layer thereon, the negative electrode layer includes a negative electrode current collector and a first negative electrode active material layer thereon, and the first negative electrode active material layer does not contain a solid electrolyte or an amount of the solid electrolyte contained in the first negative electrode active material layer is 3 wt % or less; and an exterior casing material for accommodating and sealing the stack, the exterior casing material includes a first exterior casing material on a first surface of the stack, and a second exterior casing material on the second surface of the stack, and the first exterior casing material includes a cushioning layer.