18374302. Negative Electrode and Secondary Battery simplified abstract (LG Energy Solution, Ltd.)

Negative Electrode and Secondary Battery

Organization Name

LG Energy Solution, Ltd.

Inventor(s)

Lilin Piao of Daejeon (KR)

Gyeongseop Lee of Daejeon (KR)

Minsoo Kim of Daejeon (KR)

Shulkee Kim of Daejeon (KR)

Kyutae Park of Daejeon (KR)

Sora Baek of Daejeon (KR)

Kwang Ho Yoo of Daejeon (KR)

Wonhee Jung of Daejeon (KR)

Negative Electrode and Secondary Battery - A simplified explanation of the abstract

This abstract first appeared for US patent application 18374302 titled 'Negative Electrode and Secondary Battery

Simplified Explanation

The abstract describes a negative electrode for a secondary battery that includes a current collector, a first negative electrode active material layer, and a second negative electrode active material layer. Both layers contain silicon-based active material and natural graphite with specific characteristics.

• The negative electrode for a secondary battery includes:
  • Current collector
  • First negative electrode active material layer
  • Second negative electrode active material layer
  • Both layers contain silicon-based active material and natural graphite with specific characteristics

• • Potential Applications:**

This technology could be used in various electronic devices such as smartphones, laptops, and electric vehicles to improve battery performance and energy storage capacity.

• • Problems Solved:**

This innovation addresses the issue of low energy density and limited cycle life in traditional battery systems by incorporating silicon-based active material and natural graphite in the negative electrode.

• • Benefits:**

- Enhanced energy storage capacity - Improved battery performance - Extended cycle life

• • Potential Commercial Applications:**
• Optimized Negative Electrode for Secondary Batteries: Improving Battery Performance and Energy Storage Capacity*

• • Possible Prior Art:**

One possible prior art could be the use of silicon-based active material in battery electrodes, but the specific combination with natural graphite as described in this patent application may be novel.

• • Unanswered Questions:**

1. What specific manufacturing processes are required to produce the negative electrode with the described characteristics? 2. Are there any potential drawbacks or limitations associated with using natural graphite in combination with silicon-based active material in battery electrodes?

Original Abstract Submitted

A negative electrode for a secondary battery, including: a current collector; a first negative electrode active material layer provided on the current collector; and a second negative electrode active material layer provided on the first negative electrode active material layer, in which the first and second negative electrode active material layers include a silicon-based active material and natural graphite, the natural graphite has an average particle diameter (D50) of 10 μm or less, and the OI (004/110) of the first and second negative electrode active material layers is 8 or less, and a secondary battery including the same.