18286831. LITHIUM SECONDARY BATTERY simplified abstract (PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.)
Contents
LITHIUM SECONDARY BATTERY
Organization Name
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Inventor(s)
Takahiro Fukuoka of Osaka Fu (JP)
LITHIUM SECONDARY BATTERY - A simplified explanation of the abstract
This abstract first appeared for US patent application 18286831 titled 'LITHIUM SECONDARY BATTERY
The patent application describes a lithium secondary battery with positive and negative electrodes, current collectors, and an external terminal connected to the negative electrode.
- The negative electrode includes a lithium metal that deposits during charging and dissolves during discharging.
- The electrodes and separator form a cylindrical wound body.
- The negative electrode connection portion includes an end portion or multiple tab-leads connected to the negative electrode current collector.
Potential Applications: - Energy storage systems - Electric vehicles - Portable electronic devices
Problems Solved: - Efficient energy storage - Enhanced battery performance - Improved battery safety
Benefits: - Increased battery capacity - Longer battery life - Faster charging times
Commercial Applications: - Battery manufacturing industry - Electric vehicle market - Consumer electronics sector
Questions about Lithium Secondary Battery Technology: 1. How does the lithium metal in the negative electrode affect the battery's performance? 2. What are the advantages of using a cylindrical wound body for the electrode group?
Frequently Updated Research: - Ongoing studies on improving lithium battery technology - Research on new materials for electrode construction
Overall, the patent application presents an innovative approach to lithium battery design, offering potential benefits for various industries and applications.
Original Abstract Submitted
A lithium secondary battery including positive and negative electrodes including positive and negative electrode current collectors with elongated sheets, respectively, and a negative electrode external terminal electrically connected to the negative electrode current collector, and a negative electrode connection portion interposed between the negative electrode current collector and the negative electrode external terminal, wherein in the negative electrode, a lithium metal deposits during charging and the lithium metal dissolves during discharging, the positive electrode, the negative electrode, and a separator form an electrode group of a cylindrical wound body, and the negative electrode connection portion includes (i) an end portion along a longitudinal direction of the negative electrode current collector projecting from one end face of the wound body, or (ii) a plurality of negative electrode tab-leads electrically connected to the negative electrode current collector and extending from the one end face of the wound body.
