18153171. ALL-SOLID SECONDARY BATTERY AND METHOD OF PREPARING THE SAME simplified abstract (SAMSUNG ELECTRONICS CO., LTD.)

ALL-SOLID SECONDARY BATTERY AND METHOD OF PREPARING THE SAME

Organization Name

SAMSUNG ELECTRONICS CO., LTD.

Inventor(s)

Sewon Kim of Suwon-si (KR)

Sungkyun Jung of Suwon-si (KR)

Naoki Suzuki of Yokohama-shi (JP)

Satoshi Fujiki of Yokohama-shi (JP)

Tomoyuki Tsujimura of Yokohama-shi (JP)

Hyeokjo Gwon of Hwaseong-si (KR)

Jusik Kim of Hwaseong-si (KR)

ALL-SOLID SECONDARY BATTERY AND METHOD OF PREPARING THE SAME - A simplified explanation of the abstract

This abstract first appeared for US patent application 18153171 titled 'ALL-SOLID SECONDARY BATTERY AND METHOD OF PREPARING THE SAME

Simplified Explanation

The abstract describes an all-solid secondary battery with a cathode, anode, and solid electrolyte. The anode consists of an anode current collector, a first anode active material layer with a metal, a second anode active material layer with a carbon-containing material, and a contact layer with a second metal (such as lithium) that is thinner than the first anode active material layer.

• The all-solid secondary battery includes a cathode, anode, and solid electrolyte.
• The anode has an anode current collector, a first anode active material layer with a metal, a second anode active material layer with a carbon-containing material, and a contact layer with a second metal.
• The contact layer is thinner than the first anode active material layer.
• The second metal in the contact layer can be lithium metal, a lithium alloy, a metal alloyable with lithium, or a combination of these.

Potential Applications

• Energy storage for portable electronic devices.
• Electric vehicles and hybrid electric vehicles.
• Renewable energy storage for solar or wind power systems.

Problems Solved

• All-solid secondary batteries offer improved safety compared to liquid electrolyte batteries.
• The use of a contact layer with a second metal helps enhance the performance and stability of the battery.

Benefits

• Enhanced safety due to the use of a solid electrolyte.
• Improved battery performance and stability with the addition of the contact layer.
• Potential for higher energy density and longer battery life.

Original Abstract Submitted

An all-solid secondary battery, including: a cathode; an anode; and a solid electrolyte disposed between the cathode and the anode, wherein the anode includes an anode current collector; a first anode active material layer in contact with the anode current collector and including a first metal; a second anode active material layer disposed between the first anode active material layer and the solid electrolyte and including a carbon-containing active material; and a contact layer between the second anode active material layer and the solid electrolyte, the contact layer including a second metal, and having a thickness less than a thickness of the first anode active material layer, wherein the second metal includes lithium metal, a lithium alloy, a metal alloyable with lithium, or a combination thereof.