Back to results
US 11,694,854 B2Granted
Separator for power storage device and power storage device
AssigneeSumitomo Chemical Company, Limited
InventorsJunichi Nakadate, Takamichi Shinohara
Life of this patent
Estimating the term…
Abstract
A separator for power storage devices includes a synthetic resin film having minute pore portions, the separator having an air resistance of 30 sec/100 mL/16 μm or more and 100 sec/100 mL/16 μm or less, and a first scattering peak in a stretching direction measured by small-angle X-ray scattering measurement (SAXS) present in a range where a scattering vector is 0.0030 nm−1 or more and 0.0080 nm−1 or less.
Claims7
A separator for a power storage device, the separator comprising:
- a synthetic resin film having minute pore portions,
- wherein the separator has:
- an air resistance of 30 sec/100 mL/16 μm or more and 100 sec/100 mL/16 μm or less;
- a first scattering peak in a stretching direction measured by small-angle X-ray scattering measurement (SAXS) present in a range where a scattering vector is 0.0030 nm−1 or more and 0.0080 nm−1 or less;
- and
- a lamellar long period measured by SAXS of 25 nm or less.
3 more elements
Dependencies are inferred from the claim text.