锂离子电池用微米厚度超薄集流体<strong>Cu</strong>箔和<strong>Al</strong>箔疲劳强度及损伤行为

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

表2 10和13 μm厚Al箔的疲劳极限预测值与实验值

Table 2 Fatigue limit predictions (from Fig.11) and experimental results (from Fig.5b) of Al foils with thicknesses of 10 and 13 μm

Thickness

Predicted

Experimental

μm

G( $\sqrt[]{a r e a}$ )

\sqrt[]{a r e a_{m a x}}

μm

σ_w

MPa

σ_w

MPa

Deviation

6.13

+4.1

5.13

-1.9