18293941. CYLINDRICAL LITHIUM PRIMARY BATTERY simplified abstract (MAXELL, LTD.)
Contents
CYLINDRICAL LITHIUM PRIMARY BATTERY
Organization Name
Inventor(s)
Kyoji Tsuji of Otokuni-gun (JP)
Keisuke Kawabe of Otokuni-gun (JP)
Genyo Kaneko of Otokuni-gun (JP)
Yuki Suwada of Otokuni-gun (JP)
CYLINDRICAL LITHIUM PRIMARY BATTERY - A simplified explanation of the abstract
This abstract first appeared for US patent application 18293941 titled 'CYLINDRICAL LITHIUM PRIMARY BATTERY
Simplified Explanation:
The patent application describes a cylindrical lithium primary battery with a unique electrode configuration, including spirally wound positive and negative electrodes with a separator in between.
- The positive electrode consists of a current collector and layers containing manganese dioxide as the active material.
- The negative electrode includes a current collector and two lithium layers spaced apart in the longitudinal direction.
- The negative electrode is folded back during winding, with the lithium layers overlapping and located outside the winding center.
Key Features and Innovation:
- Spirally wound positive and negative electrodes with a separator.
- Positive electrode with manganese dioxide active material.
- Negative electrode with two lithium layers spaced apart.
- Unique folding back of the negative electrode during winding.
Potential Applications:
The technology can be used in various portable electronic devices, medical devices, and power tools.
Problems Solved:
This technology addresses the need for high-performance, long-lasting lithium primary batteries with improved energy density and stability.
Benefits:
- Enhanced energy density and stability.
- Longer battery life.
- Suitable for various applications.
Commercial Applications:
Title: High-Performance Lithium Primary Battery for Portable Electronics and Power Tools This technology can be commercialized for use in portable electronic devices, medical devices, and power tools, offering improved performance and longer battery life in a compact form factor.
Prior Art:
Readers can explore prior patents related to lithium primary batteries, electrode configurations, and battery winding techniques to understand the evolution of this technology.
Frequently Updated Research:
Researchers are constantly working on improving lithium battery technology, including advancements in electrode materials, battery design, and manufacturing processes.
Questions about Lithium Primary Battery Technology:
1. What are the key advantages of using manganese dioxide as the positive electrode active material in lithium batteries? 2. How does the unique folding back of the negative electrode during winding contribute to the performance of the battery?
Original Abstract Submitted
A cylindrical lithium primary battery includes an electrode body that is configured such that a positive electrode and a negative electrode are spirally wound with a separator interposed therebetween. The positive electrode includes a positive electrode current collector and positive electrode mixture layers that are disposed on both surfaces of the positive electrode current collector and contain manganese dioxide as a positive electrode active material. The negative electrode includes a negative electrode current collector and two lithium layers that are disposed on one surface of the negative electrode current collector and spaced 6 to 12 mm apart in the longitudinal direction. The negative electrode is wound in such a manner that the negative electrode is folded back so that the folded negative electrode current collector overlaps itself, and the inner peripheral ends of the two lithium layers are respectively located outside the winding center.
