18274335. NEGATIVE ELECTRODE FOR USE IN LITHIUM-ION SECONDARY BATTERY AND LITHIUM-ION SECONDARY BATTERY simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)
Contents
- 1 NEGATIVE ELECTRODE FOR USE IN LITHIUM-ION SECONDARY BATTERY AND LITHIUM-ION SECONDARY BATTERY
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 NEGATIVE ELECTRODE FOR USE IN LITHIUM-ION SECONDARY BATTERY AND LITHIUM-ION SECONDARY BATTERY - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Potential Applications
- 1.6 Problems Solved
- 1.7 Benefits
- 1.8 Potential Commercial Applications
- 1.9 Possible Prior Art
- 1.10 Unanswered Questions
- 1.11 Original Abstract Submitted
NEGATIVE ELECTRODE FOR USE IN LITHIUM-ION SECONDARY BATTERY AND LITHIUM-ION SECONDARY BATTERY
Organization Name
TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor(s)
Akira Kohyama of Aichi-ken (JP)
Ryuta Morishima of Aichi-ken (JP)
Daisaku Ito of Kanagawa-ken (JP)
Naoyuki Iwata of Kanagawa-ken (JP)
NEGATIVE ELECTRODE FOR USE IN LITHIUM-ION SECONDARY BATTERY AND LITHIUM-ION SECONDARY BATTERY - A simplified explanation of the abstract
This abstract first appeared for US patent application 18274335 titled 'NEGATIVE ELECTRODE FOR USE IN LITHIUM-ION SECONDARY BATTERY AND LITHIUM-ION SECONDARY BATTERY
Simplified Explanation
The present disclosure describes a negative electrode for a lithium-ion secondary battery that protects the electrode from damage caused by the expansion and contraction of an Si-based negative electrode active material. The negative electrode includes a current collector and a layer of Si-based negative electrode active material, along with a high-molecular-weight organic compound to enhance battery durability.
- Si-based negative electrode active material layer protects negative electrode from expansion and contraction.
- High-molecular-weight organic compound improves battery durability.
- Weight-average molecular weight of organic compound is 1000 or higher.
Potential Applications
The technology described in this patent application could be used in various lithium-ion secondary battery applications, such as electric vehicles, portable electronics, and energy storage systems.
Problems Solved
This innovation addresses the issue of negative electrode breakage and cracks that can occur due to the expansion and contraction of Si-based negative electrode active materials in lithium-ion batteries. By incorporating a high-molecular-weight organic compound, the durability of the battery is improved.
Benefits
- Enhanced durability of lithium-ion secondary batteries - Protection against negative electrode damage - Improved performance and lifespan of batteries
Potential Commercial Applications
The technology has potential applications in electric vehicles, consumer electronics, renewable energy storage systems, and other devices that rely on lithium-ion batteries for power.
Possible Prior Art
One possible prior art could be the use of various additives in lithium-ion batteries to improve their performance and durability. However, the specific combination of an Si-based negative electrode active material with a high-molecular-weight organic compound as described in this patent application may be a novel approach to addressing the issue of negative electrode damage.
Unanswered Questions
How does the high-molecular-weight organic compound specifically improve the durability of the lithium-ion battery?
The exact mechanism by which the high-molecular-weight organic compound enhances the durability of the battery is not explicitly described in the abstract. Further details on the interaction between the compound and the electrode materials would provide a clearer understanding of this aspect.
Are there any potential drawbacks or limitations to using a high-molecular-weight organic compound in lithium-ion batteries?
While the benefits of incorporating a high-molecular-weight organic compound are highlighted in the abstract, it is essential to consider any potential drawbacks or limitations associated with its use. Factors such as cost, compatibility with other battery components, and long-term stability could be important considerations in evaluating the overall feasibility of this technology.
Original Abstract Submitted
The present disclosure provides a negative electrode for use in a lithium-ion secondary battery capable of protecting the negative electrode from breakage and cracks due to expansion and contraction of an Si-based negative electrode active material. The negative electrode is for use in a lithium-ion secondary battery and includes a negative electrode current collector and a negative electrode active material layer formed on the negative electrode current collector. The negative electrode active material layer contains, as a negative electrode active material, an Si-based negative electrode active material including Si as a component and capable of reversibly absorbing and releasing lithium ions. The negative electrode further includes a high-molecular-weight organic compound for improving durability of the lithium-ion secondary battery. The high-molecular-weight organic compound has a weight-average molecular weight of 1000 or higher.
