US Patent Application 18128099. SECONDARY BATTERY simplified abstract
Contents
SECONDARY BATTERY
Organization Name
Murata Manufacturing Co., Ltd.
Inventor(s)
SECONDARY BATTERY - A simplified explanation of the abstract
- This abstract for appeared for US patent application number 18128099 Titled 'SECONDARY BATTERY'
Simplified Explanation
This abstract describes a type of secondary battery that has a positive electrode, a negative electrode, and an electrolytic solution. The negative electrode is made up of a Si-based material and a binder. The Si-based material has a core made of a compound containing silicon, and it is covered by a material with specific properties. This covering material has a lower elastic modulus than the binder, meaning it is more flexible. It can stretch up to 100% of its original length without breaking, and it can recover 70% or more of its original shape after being stretched.
Original Abstract Submitted
A secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The negative electrode includes a Si-based negative electrode active material and a negative electrode binder. The Si-based negative electrode active material includes an active material core and a covering material. The active material core includes a Si-containing compound. The covering material covers at least a portion of a surface of the active material core. The covering material has an elastic modulus lower than an elastic modulus of the negative electrode binder. The covering material has an elongation at break of 100% or higher, and has a recovery of 70% or higher after being stretched to an elongation at break of 100%.
