18127299. POLYOLEFIN SEPARATOR FOR AN ELECTROCHEMICAL DEVICE AND ELECTROCHEMICAL DEVICE INCLUDING SAME simplified abstract (LG Energy Solution, Ltd.)
Contents
POLYOLEFIN SEPARATOR FOR AN ELECTROCHEMICAL DEVICE AND ELECTROCHEMICAL DEVICE INCLUDING SAME
Organization Name
Inventor(s)
Kyeong-Hui Bae of Daejeon (KR)
POLYOLEFIN SEPARATOR FOR AN ELECTROCHEMICAL DEVICE AND ELECTROCHEMICAL DEVICE INCLUDING SAME - A simplified explanation of the abstract
This abstract first appeared for US patent application 18127299 titled 'POLYOLEFIN SEPARATOR FOR AN ELECTROCHEMICAL DEVICE AND ELECTROCHEMICAL DEVICE INCLUDING SAME
Simplified Explanation
The abstract describes a polyolefin separator for an electrochemical device. The separator has pores with specific size ranges and is made of a polyolefin resin with a specific polydispersity index (PDI). The separator also has certain mechanical properties, such as strain rate and recovery time.
- The polyolefin separator has an average pore size of 20 nm to 40 nm and a maximum pore size of 50 nm or less.
- The polyolefin resin used in the separator has a polydispersity index (PDI) ranging from 2.5 to 4.2.
- The separator has a strain rate of 25% or less when a tensile stress is applied at 60°C at 15 MPa for 60 seconds.
- The separator has a recovery time of 200 seconds or less to reach a recovery rate of 70% after removing a tensile stress applied at 70°C at 2 MPa for 180 seconds.
Potential applications of this technology:
- Lithium-ion batteries
- Fuel cells
- Capacitors
Problems solved by this technology:
- Enhances the performance and safety of electrochemical devices by providing a separator with specific pore size and mechanical properties.
- Improves the stability and efficiency of the electrochemical device by preventing the formation of dendrites and short circuits.
Benefits of this technology:
- Improved safety due to the prevention of dendrite formation and short circuits.
- Enhanced performance and efficiency of electrochemical devices.
- Longer lifespan of the electrochemical device.
Original Abstract Submitted
A polyolefin separator for an electrochemical device, the separator having a plurality of pores having an average pore size of 20 nm to 40 nm and a maximum pore size of 50 nm or less and including a polyolefin resin having a polydispersity index (PDI) of in a range of 2.5 to 4.2. The polyolefin separator may have a strain rate of 25% or less as measured when a tensile stress is applied at 60° C. at 15 MPa for 60 seconds, and the polyolefin separator may have a recovery time of 200 seconds or less to reach a recovery rate of 70% as measured after removing a tensile stress applied at 70° C. at 2 MPa for 180 seconds.
