Toyota jidosha kabushiki kaisha (20240178535). NONAQUEOUS ELECTROLYTE SECONDARY BATTERY simplified abstract
Contents
- 1 NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 NONAQUEOUS ELECTROLYTE 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 Original Abstract Submitted
NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Organization Name
toyota jidosha kabushiki kaisha
Inventor(s)
Kosuke Iwase of Konan-shi, Aichi-ken (JP)
NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240178535 titled 'NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Simplified Explanation
The electrode body of a secondary battery described in the abstract includes a core portion with electrode mixture layers, terminal connecting portions with current collector foil exposed portions, and a mixture layer non-facing portion between the terminal connecting portion and the core portion.
- Short-circuit promoting portion with a predetermined depth (d) is formed in a separator provided between the electrode sheets in the mixture layer non-facing portion.
- Internal short-circuit is caused between the electrode mixture layer and the current collector foil exposed portion before the battery temperature rapidly increases, preventing internal short-circuit between electrode mixture layers and allowing for charging to be stopped.
Potential Applications
- Electric vehicles - Portable electronic devices - Energy storage systems
Problems Solved
- Preventing internal short-circuits in secondary batteries - Enhancing battery safety - Improving battery performance and longevity
Benefits
- Increased safety in battery operation - Enhanced reliability of battery systems - Improved overall battery efficiency
Potential Commercial Applications
Enhancing Battery Safety in Electric Vehicles and Portable Electronics
Possible Prior Art
There are existing methods to prevent internal short-circuits in batteries, such as using separators with specific properties or incorporating safety mechanisms within the battery design.
Unanswered Questions
How does the depth of the short-circuit promoting portion affect its effectiveness in preventing internal short-circuits?
The abstract mentions a predetermined depth (d) for the short-circuit promoting portion, but it does not elaborate on how this depth is determined or its impact on the prevention of internal short-circuits.
What materials are typically used for the short-circuit promoting portion in separators of secondary batteries?
The abstract does not specify the materials used for the short-circuit promoting portion, leaving room for exploration into the most effective and commonly used materials for this component.
Original Abstract Submitted
an electrode body of a secondary battery described herein includes: a core portion where electrode mixture layers of a plurality of electrode sheets are laminated; terminal connecting portions where respective current collector foil exposed portions are laminated, and a mixture layer non-facing portion where the electrode mixture layer faces the current collector foil exposed portion, the mixture layer non-facing portion being formed in a boundary between the terminal connecting portion and the core portion. in the secondary battery described herein, a short-circuit promoting portion having a predetermined depth (d) is formed in a separator provided between the electrode sheets in the mixture layer non-facing portion. hereby, before a battery temperature rapidly increases to a high-temperature range due to occurrence of internal short-circuit between the electrode mixture layers, internal short-circuit is caused between the electrode mixture layer and the current collector foil exposed portion, so that charging can be stopped.
