锂离子电池用微米厚度超薄集流体Cu箔和Al箔疲劳强度及损伤行为

程福来, 罗雪梅, 胡炳利, 张滨, 张广平

Fatigue Strength and Damage Behavior of Micron-Thick Ultrathin Current Collector Cu Foil and Al Foil for Lithium-Ion Battery

CHENG Fulai, LUO Xuemei, HU Bingli, ZHANG Bin, ZHANG Guangping

图5 不同厚度Al箔的工程应力-应变曲线以及应力幅-疲劳寿命曲线

Fig.5 Engineering stress-strain (a) and stress amplitude-fatigue life (b) curves of Al foils with different thicknesses (The arrows indicate that the specimen is not failure under this stress amplitude and cycle)