18435432. POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR PRODUCING SAME simplified abstract (NICHIA CORPORATION)
POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR PRODUCING SAME
Organization Name
Inventor(s)
Hayaki Matsumoto of Anan-shi (JP)
Yoshitomo Miyashita of Tokushima-shi (JP)
POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR PRODUCING SAME - A simplified explanation of the abstract
This abstract first appeared for US patent application 18435432 titled 'POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR PRODUCING SAME
Simplified Explanation
The method described in the abstract is for producing a positive electrode active material for a non-aqueous electrolyte secondary battery by granulating a composition containing a lithium transition metal composite oxide.
- Explanation:
- The method involves providing a composition containing a lithium transition metal composite oxide and a liquid medium. - The composition is granulated to obtain a second lithium transition metal composite oxide with specific particle size distributions. - The second lithium transition metal composite oxide has a certain ratio of particle sizes before and after ultrasonic treatment.
Potential Applications: - This method can be used in the production of positive electrode active materials for non-aqueous electrolyte secondary batteries. - It can improve the performance and efficiency of lithium-ion batteries.
Problems Solved: - Provides a method for producing positive electrode active materials with specific particle size distributions. - Enhances the properties and performance of non-aqueous electrolyte secondary batteries.
Benefits: - Improved battery performance and efficiency. - Enhanced durability and stability of lithium-ion batteries.
Potential Commercial Applications: - Battery manufacturing industry. - Renewable energy storage systems.
Possible Prior Art: - Previous methods for producing positive electrode active materials for lithium-ion batteries. - Research on granulation techniques for composite oxides in battery applications.
Unanswered Questions: 1. What specific types of lithium transition metal composite oxides are most suitable for this method? 2. How does the granulation process impact the overall performance of the battery?
Original Abstract Submitted
A method for producing a positive electrode active material for a non-aqueous electrolyte secondary battery. The method includes providing a composition containing a first lithium transition metal composite oxide having a 50% particle size Din a first volume cumulative particle size distribution of 0.1 μm or more and less than 3.2 μm and a first liquid medium; and granulating the composition to obtain a second lithium transition metal composite oxide having a 50% particle size Din a second volume cumulative particle size distribution greater than D. The second lithium transition metal composite oxide has a ratio of a 90% particle size Din a third volume cumulative particle size distribution measured after the ultrasonic treatment to a 90% particle size Din the second volume cumulative particle size distribution measured before the ultrasonic treatment (D/D) of 0.53 or less.
