US 11,967,678 B2
All solid-state lithium-ion battery incorporating electrolyte-infiltrated composite electrodes
Zhigang Lin, Garden Grove, CA (US); Chunhu Tan, Garden Grove, CA (US); and Tianyu Meng, Garden Grove, CA (US)
Assigned to Solid Energies, Inc., Anaheim, CA (US)
Filed by SOLID ENERGIES INC., Garden Grove, CA (US)
Filed on Jan. 16, 2023, as Appl. No. 18/097,384.
Application 18/097,384 is a division of application No. 17/140,690, filed on Jan. 4, 2021, granted, now 11,588,176, issued on Feb. 21, 2023.
Prior Publication US 2023/0155168 A1, May 18, 2023
Int. Cl. H01M 10/0562 (2010.01); H01M 4/02 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01)
CPC H01M 10/0562 (2013.01) [H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/622 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01); H01M 2300/0071 (2013.01)] 21 Claims
 
1. A ceramic-polymer composite electrode that comprises:
(i) a polymer matrix, (ii) ceramic nanoparticles that are distributed in the polymer matrix wherein the nanoparticles comprise AlxLi7-xLa3Zr2-y-zTayNbzO12 wherein x ranges from 0.1 to 0.85, y ranges from 0 to 0.50, and z ranges from 0 to 0.75, and mixtures thereof, (iii) an anode active material which comprises graphite that is distributed in the polymer matrix, (iv) a conducting agent that is distributed in the polymer matrix, (v) a plasticizer and (vi) a lithium salt wherein the electrode comprises 60 to 96 wt % anode active material, 1 to 15 wt % conducting agent, 0.1 to 10 wt % lithium salt, 0.1 to 5 wt % ceramic nanoparticles, 0.1 to 10 wt % plasticizer, 0.1 to 5 wt % polymer matrix and 0 to 15 wt %, additional binder and wherein the ceramic nanoparticles have diameters that range from 10 to 2000 nm and wherein the electrode is in the form of a film that has an ionic conductivity that is higher than 0.1×10−3 S/cm when measured at a temperature between −30° C. to 10° C. and that is higher than 1×10−3 S/cm when measured at a temperature of 20° C. or higher.
 
7. A ceramic-polymer composite electrode that comprises: (i) a polymer matrix, (ii) ceramic nanoparticles that are distributed in the polymer matrix wherein the nanoparticles comprise AlxLi7-xLa3Zr2-y-zTayNbzO12 wherein x ranges from 0.1 to 0.85, y ranges from 0 to 0.50, and z ranges from 0 to 0.75, (iii) an anode active material which comprises silicon that is distributed in the polymer matrix, (iv) a conducting agent that is distributed in the polymer matrix, (v) a plasticizer and (vi) a lithium salt wherein the electrode comprises 60 to 96 wt % anode active material, 1 to 15 wt % conducting agent, 0.1 to 10 wt % lithium salt, 0.1 to 5 wt % ceramic nanoparticles, 0.1 to 10 wt % plasticizer, 0.1 to 5 wt % polymer matrix and 0 to 15 wt %, additional binder and wherein the ceramic nanoparticles have diameters that range from 10 to 2000 nm and wherein the electrode is in the form of a film that has an ionic conductivity that is higher than 0.1×10−3 S/cm when measured at a temperature between −30° C. to 10° C. and that is higher than 1×10−3 S/cm when measured at a temperature of 20° C. or higher.
 
14. A ceramic-polymer composite electrode that comprises:
(i) a polymer matrix, (ii) ceramic nanoparticles that are distributed in the polymer matrix wherein the nanoparticles comprise AlxLi7-xLa3Zr2-y-zTayO12 wherein x ranges from 0.1 to 0.85, y ranges from 0 to 0.50, and z ranges from 0 to 0.75, (iii) a cathode active material that consists essentially of lithium based cathode material particles that are distributed in the polymer matrix, (iv) a conducting agent that is distributed in the polymer matrix, (v) a plasticizer and (vi) a lithium salt wherein the electrode comprises 60 to 96 wt % cathode active material, 1 to 15 wt % conducting agent, 0.1 to 10 wt % lithium salt, 0.1 to 5 wt % ceramic nanoparticles, 0.1 to 10 wt % plasticizer, 0.1 to 5 wt % polymer matrix and 0 to 15 wt %, additional binder and wherein the ceramic nanoparticles have diameters that range from 10 to 2000 nm and wherein the electrode is in the form of a film that has an ionic conductivity that is higher than 0.1×10−3 S/cm when measured at a temperature between −30° C. to 10° C. and that is higher than 1×10−3 S/cm when measured at a temperature of 20° C. or higher.