US2022278364A1PendingUtilityA1

Electrolyte for a solid-state battery

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Assignee: CORNING INCPriority: Dec 21, 2016Filed: May 19, 2022Published: Sep 1, 2022
Est. expiryDec 21, 2036(~10.4 yrs left)· nominal 20-yr term from priority
Inventors:Michael Edward BaddingJacqueline Leslie BrownJennifer Anella HeineThomas Dale KetchamGary Edward MerzEric Lee MillerZhen SongCameron Wayne TannerConor J. Walsh
C09J 7/21C04B 2235/661C09J 7/30C04B 35/622B28B 1/30C04B 35/48C04B 2235/6567C09J 1/00C04B 2235/6562H10W 90/724H10W 74/00H10W 72/07554H10W 72/884H10W 72/547H10W 90/293H10W 70/682H10W 70/681H10W 90/754H10W 72/944H10W 72/30H10W 72/20H10W 72/952H10W 72/075H10W 72/07507H10W 72/07336H10W 72/07334H10W 72/073H10W 72/07307H10W 72/072H10W 72/241H10W 72/01335H10W 72/01338H10W 72/01323H10W 90/734H10W 40/259H10W 70/692H10P 72/0442C04B 35/62218H01M 4/5825H01M 4/505H01M 4/0471H01M 10/052H01M 4/1397H01M 4/131H01M 10/0562H01M 4/525H01M 4/1391H01M 2300/0077H01M 4/136H01M 10/0525H01M 2004/028G02B 6/122H01M 2300/0071H10H 20/855H10H 20/851H01L 2224/16225Y02E60/10
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Claims

Abstract

Electrolyte for a solid-state battery includes a body having grains of inorganic material sintered to one another, where the grains include lithium. The body is thin, has little porosity by volume, and has high ionic conductivity.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A sheet of material configured for a solid-state battery, comprising:
 a body comprising ceramic grains sintered to one another, wherein the grains comprise lithium, lanthanum, zirconium, and oxygen, and wherein greater than 95% of the body by weight consists of cubic lithium garnet crystals;   wherein thickness of the body, between first and second major surfaces thereof, is in a range from 3 μm to 100 μm, and wherein the body has a width of 5 mm or greater;   wherein the body is flattenable without fracturing as determined by pressing the body between rigid parallel surfaces at 23° C. such that the body overlays or is within a distance of 0.05 mm of a flat plane; and   wherein the grains sintered to one another have an average grain size of 5 μm or less, and wherein the body has ionic conductivity greater than 1×10 −4  S/cm.   
     
     
         2 . The sheet of  claim 1 , wherein the body has closed porosity. 
     
     
         3 . The sheet of  claim 1 , wherein the body has less than 10% porosity by volume. 
     
     
         4 . The sheet of  claim 1 , wherein the grains further comprise tantalum, and wherein the body has ionic conductivity greater than 2×10 −4  S/cm. 
     
     
         5 . The sheet of  claim 4 , wherein the grains further comprise aluminum. 
     
     
         6 . The sheet of  claim 1 , wherein the body has a length of at least 10 m. 
     
     
         7 . A roll of the sheet of  claim 6  wound on a spool. 
     
     
         8 . A sheet of material configured for a solid-state battery, comprising:
 a body comprising ceramic grains sintered to one another, wherein the grains comprise lithium, and wherein greater than 95% of the body by weight consists of cubic lithium garnet crystals;   wherein thickness of the body, between first and second major surfaces thereof, is in a range from 3 μm to 50 μm, and wherein the body has a width of 5 mm or greater;   wherein the body has a length of 1 m or greater;   wherein fewer than 10 pin holes of a cross-sectional area of at least a square micrometer pass through the body, per square millimeter of surface on average; and   wherein the grains sintered to one another have an average grain size of 5 μm or less, and wherein the body has ionic conductivity greater than 1×10 −4  S/cm.   
     
     
         9 . The sheet of  claim 8 , wherein the body has a length of at least 10 m. 
     
     
         10 . A roll of the sheet of  claim 9  wound on a spool. 
     
     
         11 . The sheet of  claim 8 , wherein the body has closed porosity. 
     
     
         12 . The sheet of  claim 11 , wherein the body has less than 10% porosity by volume. 
     
     
         13 . The sheet of  claim 12 , wherein the grains further comprise lanthanum, zirconium, and oxygen. 
     
     
         14 . A sheet of material configured fora solid-state battery, comprising:
 a body comprising ceramic grains sintered to one another, wherein the grains comprise lithium, lanthanum, zirconium, and oxygen, and wherein greater than 95% of the body by weight consists of cubic lithium garnet crystals;   wherein thickness of the body, between first and second major surfaces thereof, is in a range from 3 μm to 50 μm, and wherein the body has a width of 5 mm or greater;   wherein fewer than 10 pin holes of a cross-sectional area of at least a square micrometer pass through the body, per square millimeter of surface on average;   wherein the body is flattenable without fracturing as determined by pressing the body between rigid parallel surfaces at 23° C. such that the body overlays or is within a distance of 0.05 mm of a flat plane; and   wherein the grains sintered to one another have an average grain size of 5 μm or less, and wherein the body has ionic conductivity greater than 1×10 −4  S/cm.   
     
     
         15 . The sheet of  claim 14 , wherein the body has closed porosity. 
     
     
         16 . The sheet of  claim 14 , wherein the body has less than 10% porosity by volume. 
     
     
         17 . The sheet of  claim 14 , wherein the grains further comprise tantalum, and wherein the body has ionic conductivity greater than 2×10 −4  S/cm. 
     
     
         18 . The sheet of  claim 14 , wherein the grains further comprise aluminum. 
     
     
         19 . The sheet of  claim 14 , wherein the body has a length of at least 10 m. 
     
     
         20 . A roll of the sheet of  claim 19  wound on a spool.

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