Toyota jidosha kabushiki kaisha (20240201283). METHOD OF TESTING LITHIUM-ION SECONDARY BATTERY, AND METHOD OF PRODUCING LITHIUM-ION SECONDARY BATTERY USING THE SAME simplified abstract
METHOD OF TESTING LITHIUM-ION SECONDARY BATTERY, AND METHOD OF PRODUCING LITHIUM-ION SECONDARY BATTERY USING THE SAME
Organization Name
toyota jidosha kabushiki kaisha
Inventor(s)
Yamato Saito of Nagoya-shi (JP)
Toshiya Arakawa of Kariya-shi (JP)
METHOD OF TESTING LITHIUM-ION SECONDARY BATTERY, AND METHOD OF PRODUCING LITHIUM-ION SECONDARY BATTERY USING THE SAME - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240201283 titled 'METHOD OF TESTING LITHIUM-ION SECONDARY BATTERY, AND METHOD OF PRODUCING LITHIUM-ION SECONDARY BATTERY USING THE SAME
Simplified Explanation: The patent application describes a method for testing lithium-ion secondary batteries to determine their quality quickly and accurately, even when using lithium iron phosphate as a cathode active material. The method involves adjusting the charging rate of the battery, setting the voltage of a test power supply, measuring leakage current, and determining the battery's condition based on the leakage current.
- Adjusting the charging rate of the battery to be in a specific range.
- Setting the voltage of a test power supply equal to or higher than the battery voltage.
- Measuring leakage current through the circuit until it converges.
- Determining the battery's condition based on the leakage current after convergence.
Potential Applications: This technology can be used in the manufacturing and quality control of lithium-ion secondary batteries in various industries such as electronics, automotive, and renewable energy.
Problems Solved: This method addresses the need for a quick and accurate way to test the quality of lithium-ion secondary batteries, especially when using lithium iron phosphate as a cathode active material.
Benefits: The method provides a high level of accuracy in determining the condition of the battery in a short amount of time, improving efficiency in battery testing processes.
Commercial Applications: Potential commercial applications include battery manufacturing facilities, quality control laboratories, and research institutions focused on battery technology development.
Questions about Lithium-Ion Battery Testing: 1. How does the method of adjusting the charging rate help in determining the battery's condition? 2. What are the advantages of using this testing method compared to traditional battery testing techniques?
Original Abstract Submitted
provide is a method of testing a lithium-ion secondary battery which enables whether the battery is good or bad to be determined with high accuracy in a short time even when lithium iron phosphate is used as a cathode active material. the method of testing the battery includes: adjusting a charging rate of the battery to be in a plateau region and to be in the range from 25 to 35% or 70 to 90%; setting voltage of a test power supply to a voltage equal to or higher than voltage of the battery; building a circuit by connecting the battery and the test power supply; measuring a leakage current that flows through the circuit until the increase of the leakage current converges; and determining whether the battery is good or bad based on the leakage current after the leakage current has converged.
