Table 2 The d-spacing difference (%) for different planes at difference C-rate.

From: Preferential lattice expansion of polypropylene in a trilayer polypropylene/polyethylene/polypropylene microporous separator in Li-ion batteries

Current density (mA cm−2 g−1)

Δd/d0 (%)

PP(110)

PP(040)

PP(130)

PE(110)

PE(200)

0.75

0.127

1.535

0.764

0.198

0.527

1.27

0.063

0.448

0.253

0.083

0.234

2.51

0.048

0.276

0.006

0.042

0.103

  1. Δd = df − d0, spacing difference.
  2. df, the spacing at fully charged condition.
  3. d0, the spacing before charging condition.
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