Liquid absorbing sheet and nonaqueous electrolyte battery pack

Details Liquid absorbing sheet and nonaqueous electrolyte battery pack Liquid absorbing sheet and nonaqueous electrolyte battery pack

2008-07-15

2008-07-15

Rickman, Holly (Department: 1794)

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

C429S099000, C429S163000

Reexamination Certificate

active

07399531

ABSTRACT:
A liquid absorbing sheet includes a liquid absorbing resin layer that can effectively absorb nonaqueous electrolyte solutions used in nonaqueous electrolyte secondary cells that make nonaqueous electrolyte battery packs (in particular, lithium ion-based nonaqueous secondary battery packs). The liquid absorbing resin layer is obtained by irradiating UV-rays onto a monomer composition to polymerize the monomer composition, the monomer composition containing:a monofunctional monomer component containing a monofunctional monomer capable of forming a homopolymer that is soluble in a nonaqueous solvent used in a nonaqueous electrolyte secondary battery; anda polyfunctional monomer component.

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