18157105. ALL-SOLID LITHIUM SECONDARY BATTERY, MANUFACTURING METHOD THEREOF, METHOD OF USE THEREOF, AND CHARGING METHOD THEREOF simplified abstract (SAMSUNG ELECTRONICS CO., LTD.)

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ALL-SOLID LITHIUM SECONDARY BATTERY, MANUFACTURING METHOD THEREOF, METHOD OF USE THEREOF, AND CHARGING METHOD THEREOF

Organization Name

SAMSUNG ELECTRONICS CO., LTD.

Inventor(s)

Naoki Suzuki of Kanagawa-ken (JP)

Nobuyoshi Yashiro of Kanagawa-ken (JP)

Yuichi Aihara of Kanagawa-ken (JP)

ALL-SOLID LITHIUM SECONDARY BATTERY, MANUFACTURING METHOD THEREOF, METHOD OF USE THEREOF, AND CHARGING METHOD THEREOF - A simplified explanation of the abstract

This abstract first appeared for US patent application 18157105 titled 'ALL-SOLID LITHIUM SECONDARY BATTERY, MANUFACTURING METHOD THEREOF, METHOD OF USE THEREOF, AND CHARGING METHOD THEREOF

Simplified Explanation

The abstract describes an all-solid lithium secondary battery with specific components and characteristics.

  • The battery includes a cathode, a solid electrolyte layer, and an anode.
  • The cathode has a cathode active material layer.
  • The solid electrolyte layer is positioned between the cathode and the anode.
  • The anode has an anode active material layer that forms an alloy or compound with lithium.
  • The anode active material layer contains 33% to 95% of amorphous carbon by weight.
  • The ratio of the initial charge capacity of the cathode active material layer to the initial charge capacity of the anode active material layer should be between 0.01 and 0.5.

Potential applications of this technology:

  • Energy storage for portable electronic devices such as smartphones and laptops.
  • Power source for electric vehicles and hybrid vehicles.
  • Backup power supply for renewable energy systems.

Problems solved by this technology:

  • Improves the performance and efficiency of lithium secondary batteries.
  • Enhances the stability and safety of the battery by using a solid electrolyte layer.
  • Reduces the risk of lithium dendrite formation, which can cause short circuits and battery failure.

Benefits of this technology:

  • Longer battery life and increased energy density.
  • Faster charging and discharging capabilities.
  • Improved safety and stability due to the use of a solid electrolyte layer.
  • Potential for smaller and lighter battery designs.


Original Abstract Submitted

An all-solid lithium secondary battery, including: a cathode including a cathode active material layer; a solid electrolyte layer; and an anode including an anode active material layer, which forms an alloy or a compound with lithium, wherein the cathode, the solid electrolyte is between the cathode and the anode, wherein the anode active material layer includes about 33 weight percent to about 95 weight percent of an amorphous carbon with respect to the total mass of an anode active material in the anode active material layer, and a ratio of the initial charge capacity of the cathode active material layer to the initial charge capacity of the anode active material layer satisfies 0.01<b/a<0.5, wherein a is the initial charge capacity of the cathode active material layer, and b is the initial charge capacity of the anode active material layer.

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