18056753. NEGATIVE ELECTRODE FOR ALL-SOLID SECONDARY BATTERY, ALL-SOLID SECONDARY BATTERY INCLUDING NEGATIVE ELECTRODE, AND METHOD OF PREPARING ALL-SOLID SECONDARY BATTERY simplified abstract (SAMSUNG ELECTRONICS CO., LTD.)

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NEGATIVE ELECTRODE FOR ALL-SOLID SECONDARY BATTERY, ALL-SOLID SECONDARY BATTERY INCLUDING NEGATIVE ELECTRODE, AND METHOD OF PREPARING ALL-SOLID SECONDARY BATTERY

Organization Name

SAMSUNG ELECTRONICS CO., LTD.

Inventor(s)

Sewon Kim of Suwon-si (KR)

Dongjin Yun of Pohang-si (KR)

Seungsik Hwang of Seongnam-si (KR)

Dongsu Ko of Seoul (KR)

Jusik Kim of Hwaseong-si (KR)

Gabin Yoon of Seoul (KR)

NEGATIVE ELECTRODE FOR ALL-SOLID SECONDARY BATTERY, ALL-SOLID SECONDARY BATTERY INCLUDING NEGATIVE ELECTRODE, AND METHOD OF PREPARING ALL-SOLID SECONDARY BATTERY - A simplified explanation of the abstract

This abstract first appeared for US patent application 18056753 titled 'NEGATIVE ELECTRODE FOR ALL-SOLID SECONDARY BATTERY, ALL-SOLID SECONDARY BATTERY INCLUDING NEGATIVE ELECTRODE, AND METHOD OF PREPARING ALL-SOLID SECONDARY BATTERY

Simplified Explanation

The abstract describes a negative electrode-solid electrolyte sub-assembly for an all-solid secondary battery. Here are the key points:

  • The sub-assembly consists of a negative electrode current collector, a first negative active material layer, an interlayer, and a solid electrolyte.
  • The interlayer is made up of a composite material containing a first metal material and a lithium ion conductor.
  • The first metal material can be a metal, an alloy of the metal and lithium, a compound of the metal and lithium, or a combination of these.
  • The first negative active material layer includes a carbonaceous negative active material and optionally a second metal or metalloid.

Potential applications of this technology:

  • All-solid secondary batteries: This sub-assembly can be used in the development of all-solid secondary batteries, which have the potential for higher energy density and improved safety compared to traditional liquid electrolyte batteries.
  • Electric vehicles: All-solid secondary batteries with improved electrode-solid electrolyte sub-assemblies can enhance the performance and range of electric vehicles.
  • Portable electronics: The technology can be applied to the development of more efficient and longer-lasting batteries for smartphones, laptops, and other portable electronic devices.

Problems solved by this technology:

  • Safety concerns: All-solid secondary batteries are less prone to leakage or explosion compared to liquid electrolyte batteries, addressing safety concerns.
  • Energy density: The use of a composite interlayer and carbonaceous negative active material can increase the energy density of the battery, allowing for longer-lasting power.

Benefits of this technology:

  • Improved safety: The all-solid design reduces the risk of leakage or explosion, making the battery safer to use.
  • Higher energy density: The use of a composite interlayer and carbonaceous negative active material increases the energy density, resulting in longer battery life and improved performance.
  • Versatility: The ability to incorporate different metals and metalloids in the negative active material layer allows for flexibility in battery design and performance optimization.


Original Abstract Submitted

A negative electrode-solid electrolyte sub-assembly for an all-solid secondary battery, the sub-assembly including: a negative electrode current collector; a first negative active material layer on the current collector; an interlayer on the first negative active material layer; and a solid electrolyte on the interlayer and opposite the first negative active material layer, wherein the interlayer includes a composite including a first metal material and a lithium ion conductor, wherein the first metal material includes a first metal, an alloy including the first metal and lithium, a compound including the first metal and lithium, or a combination thereof, wherein the first negative active material layer includes a carbonaceous negative active material, and optionally a first negative active material including a second metal, a metalloid, or a combination thereof.

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