US 12,153,024 B2
System and method for fatigue testing of metal foil
Ki Tae Kim, Daejeon (KR); Hyung Kyun Yu, Daejeon (KR); Ki Hoon Paeng, Daejeon (KR); Na Yoon Kim, Daejeon (KR); and Jae Won Moon, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/777,185
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
PCT Filed Jan. 28, 2021, PCT No. PCT/KR2021/001161
§ 371(c)(1), (2) Date May 16, 2022,
PCT Pub. No. WO2021/261700, PCT Pub. Date Dec. 30, 2021.
Claims priority of application No. 10-2020-0076311 (KR), filed on Jun. 23, 2020.
Prior Publication US 2022/0390341 A1, Dec. 8, 2022
Int. Cl. G01N 3/12 (2006.01); H01M 4/66 (2006.01); H01M 10/42 (2006.01)
CPC G01N 3/12 (2013.01) [H01M 4/661 (2013.01); H01M 10/4285 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A system for testing fatigue of a metal foil comprising:
a flat tube in a roll structure the metal foil laminated along with the flat tube;
a charge/discharge simulation unit including a gas injector for injecting gas to the flat tube such that the flat tube is inflated when the gas is injected into the tube thereby stress is provided with the metal foil and a gas discharger for discharging gas from the flat tube; and
a tensile strength measuring unit to measure
tensile strength (TS1) of the metal foil before the charge/discharge simulation unit injects or discharges the gas, and
tensile strength (TS2) of the metal foil after the charge/discharge simulation unit injects or discharges the gas.