18363746. LITHIUM SECONDARY BATTERY, SECONDARY BATTERY MODULE, AND SECONDARY BATTERY PACK simplified abstract (SK On Co., Ltd.)

LITHIUM SECONDARY BATTERY, SECONDARY BATTERY MODULE, AND SECONDARY BATTERY PACK

Organization Name

SK On Co., Ltd.

Inventor(s)

Jun Hee Han of Daejeon (KR)

Moon Sung Kim of Daejeon (KR)

Hyo Mi Kim of Daejeon (KR)

Sang Baek Ryu of Daejeon (KR)

Da Hye Park of Daejeon (KR)

Sang In Bang of Daejeon (KR)

Seung Hyun Yook of Daejeon (KR)

Hwan Ho Jang of Daejeon (KR)

Da Bin Chung of Daejeon (KR)

LITHIUM SECONDARY BATTERY, SECONDARY BATTERY MODULE, AND SECONDARY BATTERY PACK - A simplified explanation of the abstract

This abstract first appeared for US patent application 18363746 titled 'LITHIUM SECONDARY BATTERY, SECONDARY BATTERY MODULE, AND SECONDARY BATTERY PACK

Simplified Explanation

The patent application describes a lithium secondary battery with specific layers in the anode mixture, including different weight ratios of silicon-based active material in each layer.

• The first unit cell includes a first anode with a 1-1 anode mixture layer and a 1-2 anode mixture layer on top.
• The second unit cell includes a second anode with a 2-1 anode mixture layer and a 2-2 anode mixture layer on top.
• The weight ratio of silicon-based active material in the 1-2 anode mixture layer is higher than in the 1-1 layer.
• The weight ratio of silicon-based active material in the 2-2 anode mixture layer is equal to or lower than in the 2-1 layer.

Potential Applications

This technology could be applied in electric vehicles, portable electronic devices, and energy storage systems.

Problems Solved

This innovation addresses the issue of improving the performance and efficiency of lithium secondary batteries by optimizing the composition of the anode mixture layers.

Benefits

The benefits of this technology include enhanced battery performance, increased energy density, and longer cycle life.

Potential Commercial Applications

The commercial applications of this technology could include battery manufacturing companies, electric vehicle manufacturers, and consumer electronics companies.

Possible Prior Art

One possible prior art could be research on silicon-based anode materials in lithium batteries and their impact on battery performance.

Unanswered Questions

How does the weight ratio of silicon-based active material affect the overall performance of the lithium secondary battery?

The weight ratio of silicon-based active material in different anode mixture layers is crucial for optimizing battery performance, but the specific impact of these ratios on overall battery performance needs further clarification.

What are the potential challenges in scaling up the production of lithium secondary batteries with these specific anode mixture layers?

While the technology shows promise in improving battery performance, there may be challenges in scaling up production to meet commercial demands, such as cost-effectiveness and manufacturing consistency.

Original Abstract Submitted

The technology and implementations disclosed in this patent document generally relate to a lithium secondary battery including: a first unit cell including a first anode including a 1-1 anode mixture layer and a 1-2 anode mixture layer on the 1-1 anode mixture layer, and a second unit cell including a second anode including a 2-1 anode mixture layer and a 2-2 anode mixture layer on the 2-1 anode mixture layer, wherein a weight ratio of the silicon-based active material in the 1-2 anode mixture layer is greater than a weight ratio of the silicon-based active material in the 1-1 anode mixture layer, and a weight ratio of the silicon-based active material in the 2-2 anode mixture layer is less than or equal to a weight ratio of the silicon-based active material in the 2-1 anode mixture layer.