IP Library Patent Application 13528727
Patent Application
App. No. 13/528,727

BATTERY WITH A RECYCLABLE DRY PARTICLE BASED ELECTRODE

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Quick Facts
Patent No.
US None
App. No.
13/528,727
Abstract

A dry process based battery that includes an electrode with one or more recycled structure is disclosed.

Claims (27)

1 .- 91 . (canceled)

92 . (canceled)

93 . (canceled)

94 . (canceled)

95 . (canceled)

96 . A battery, comprising:

a cathode comprising a plurality of dry processed particles, the dry processed particles including recycled binder and conductive particles.

97 . The battery of claim 96 , wherein at least some of the dry processed particles are formed as a self-supporting dry electrode film.

98 . The battery of claim 96 , further comprising an electrically conductive substrate, wherein the at least some of the dry processed particles are bonded to the electrically conductive substrate to form the cathode.

99 . The battery of claim 97 , wherein the dry electrode film comprises a density of greater than or equal to about 0.3 gm/cm 3 .

100 . The battery of claim 96 , further comprising a sealed housing, wherein the dry processed particles are disposed within the housing.

101 . The battery of claim 98 , further comprising a sealed housing, wherein the electrically conductive substrate is coupled to the housing by a laser weld.

102 . The battery of claim 97 , wherein the self-supporting dry electrode film comprises an anode.

103 . The battery of claim 102 , wherein the anode comprises 80 to 96% graphite, 0 to 10% carbon black, and 4 to 10% of fibrillizable binder.

104 . The battery of claim 98 , wherein the electrically conductive substrate comprises aluminum.

105 . The battery of claim 100 , wherein the housing comprises aluminum.

106 . The battery of claim 96 , wherein the dry processed particles comprise dry carbon particles.

107 . The battery of claim 106 , wherein the dry carbon particles comprise conductive carbon particles.

108 . The battery of claim 106 , wherein the dry carbon particles comprise graphite particles.

109 . The battery of claim 106 , wherein the dry carbon particles comprise carbon black particles.

110 . The battery of claim 96 , wherein the dry processed particles comprise lithium compound particles.

111 . The battery of claim 110 , wherein the lithium compound particles comprise lithium metal oxide particles.

112 . The battery of claim 111 , wherein the lithium metal oxide particles comprise at least one of lithium cobalt oxide particles and lithium manganese oxide particles and lithium iron phosphate.

113 . The battery of claim 96 , wherein the binder consists essentially of fluoropolymer particles.

114 . The battery of claim 96 , wherein the binder consists essentially of polytetrafluoroethylene (PTFE).

115 . The battery of claim 96 , wherein the dry processed particles comprises up to 10% conductive carbon particles, 50% to 96% lithiated metal oxide particles, and 0.5% to 50% fibrillizable binder particles.

116 . The battery of claim 97 , wherein the dry electrode film comprises a density of about 0.45 gm/cm 3 .

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 22, 2021
From: MAXWELL TECHNOLOGIES, INC.
To: TESLA, INC.
Reel/Frame 057890/0202 →