Journal
SOLID STATE IONICS
Volume 135, Issue 1-4, Pages 249-257Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0167-2738(00)00371-4
Keywords
polymer battery; lithium-ion; phase inversion; microporosity; PVDF-HFP copolymers
Categories
Ask authors/readers for more resources
A method of making microporous separators and laminated plastic Li-ion batteries which avoids the use of a plasticizer extraction process is described. It is based on phase inversion of PVDF-HFP copolymers via film casting from solutions of the copolymer in a mixture of volatile solvent and non-solvent. The electrode and separator films so obtained exhibit a high electrolyte uptake and allow the fabrication of laminated plastic Li-ion batteries with good discharge rate capabilities. The unique and unexpected pole morphology obtained by the described process is illustrated by SEM microphotographs. Its effect on the mechanical stability of the microporous structure, which enables excellent bonding of the various layers via lamination under elevated temperature and pressure without destruction of the porosity, is discussed as well. (C) 2000 Published by Elsevier Science B.V.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available