✦ LIBER ✦
Macroporous poly(vinylidene fluoride) membrane as a separator for lithium-ion batteries with high charge rate capacity
✍ Scribed by D. Djian; F. Alloin; S. Martinet; H. Lignier
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 545 KB
- Volume
- 187
- Category
- Article
- ISSN
- 0378-7753
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✦ Synopsis
The performance of PVdF macroporous separators used in lithium battery at high charge rates was evaluated using Li 4 Ti 5 O 12 and LiMn 2 O 4 as negative and positive electrodes respectively. The effects of the non-solvent used, the PVdF concentration in the good solvent and the thickness of the swelled membrane on membrane porosity and on the conductivity of the separator + liquid electrolyte were evaluated. The conductivity decrease, induced by the porous separator introduction and separator thickness influence notably battery performance for high charge rate.