×

Non-woven polymer fiber mat for use in a lithium ion battery electrochemical cell

  • US 9,346,066 B2
  • Filed: 06/05/2012
  • Issued: 05/24/2016
  • Est. Priority Date: 06/05/2012
  • Status: Active Grant
First Claim
Patent Images

1. A method comprising:

  • (a) providing a collector substrate that includes a collection face;

    (b) positioning the collection face of the collector substrate into deposition alignment with both an electrospinning apparatus and an electrospraying apparatus; and

    (c) forming a non-woven polymer fiber mat onto the collection face of the collector substrate, the non-woven polymer fiber mat comprising a fibrous web of one or more polymer fibers and particles dispersed throughout the fibrous web, the non-woven polymer fiber mat being formed by at least the steps of;

    (c1) electrospinning the fibrous web of one or more polymer fibers onto the collection face; and

    , simultaneously;

    (c2) electrospraying the particles towards the same portion of the collection face of the collector substrate so that the particles become intermingled with the polymer fiber(s) as the particles and the polymer fiber(s) travel towards the collection face of the collector substrate;

    (d) removing the non-woven polmer fiber mat from the collection face of the collector substrate; and

    (e) calculating the non-woven polymer fiber mat by passing the non-woven polymer fiber mat between a pair of counter-rotating rollers to compress the mat.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×