Abstract: Electrolyte-infiltrated composite electrode includes an electrolyte component consisting of a polymer matrix with ceramic nanoparticles embedded in the matrix to form a networking structure of electrolyte. Suitable ceramic nanoparticles have the basic formula Li7La3Zr2O12 (LLZO) and its derivatives such as AlxLi7-xLa3Zr2-y-zTayNbzO12 where x ranges from 0 to 0.85, y ranges from 0 to 0.50 and z ranges from 0 to 0.75, wherein at least one of x, y and z is not equal to 0. The networking structure of the electrolyte establishes an effective lithium-ion transport pathway in the electrode and strengthens the contact between electrode layer and solid-state electrolyte resulting in higher lithium-ion electrochemical cell's cycling stability and longer battery life. Sold-state electrolytes incorporating the ceramic particles demonstrate improved performance.

Abstract: Fabricating a composite solid-state electrolyte (SSE) membrane by infiltrating a porous polymer substrate with a mixture which comprises: (i) polymer precursor, (ii) ceramic nanoparticles with diameters that range from 10 to 2000 nm, (iii) plasticizer and (iv) lithium salt. Curing the mixture yields a solid-state electrolyte which is formed within pores of the substrate. A continuous roll-to-roll system for manufacturing of large-dimension, flexible, ultrathin, high ionic conductivity (SSE) membrane advances a porous polymer substrate through a coating module, multifunctional module for post-treatment curing and calendar unit. The SSE membrane is used in all solid-state lithium-ion electrochemical pouch cells. The SSE membrane exhibits high ionic conductivity over wide temperature range, especially high value in low temperature (?40° C.).

Abstract: Electrolyte-infiltrated composite electrode includes an electrolyte component consisting of a polymer matrix with ceramic nanoparticles embedded in the matrix to form a networking structure of electrolyte. Suitable ceramic nanoparticles have the basic formula Li7La3Zr2O12 (LLZO) and its derivatives such as AlxLi7-xLa3Zr2-y-zTayNbzO12 where x ranges from 0 to 0.85, y ranges from 0 to 0.50 and z ranges from 0 to 0.75, wherein at least one of x, y and z is not equal to 0. The networking structure of the electrolyte establishes an effective lithium-ion transport pathway in the electrode and strengthens the contact between electrode layer and solid-state electrolyte resulting in higher lithium-ion electrochemical cell's cycling stability and longer battery life. Sold-state electrolytes incorporating the ceramic particles demonstrate improved performance.

Abstract: In solid-state lithium-ion battery cells, electrolyte-infiltrated composite electrode includes an electrolyte component consisting of polymer matrix with ceramic nanoparticles embedded in the matrix to form networking structure of electrolyte. The networking structure establishes effective lithium-ion transport pathway in the electrode. Electrolyte-infiltrated composite electrode sheets and solid electrolyte membranes can be used in all solid-state lithium electrochemical pouch and coin cells. Solid-state lithium-ion battery is fabricated by: (a) providing an anode layer; (b) providing a cathode layer; (c) positioning a ceramic-polymer composite electrolyte membrane between the anode layer and the cathode layer to form a laminar battery assembly; (d) applying pressure to the laminar battery assembly; and (e) heating the laminar battery assembly.

Abstract: Electrolyte-infiltrated composite electrode includes an electrolyte component consisting of a polymer matrix with ceramic nanoparticles embedded in the matrix to form a networking structure of electrolyte. Suitable ceramic nanoparticles have the basic formula Li7La3Zr2O12 (LLZO) and its derivatives such as AlxLi7-xLa3Zr2-y-zTayNbzO12 where x ranges from 0 to 0.85, y ranges from 0 to 0.50 and z ranges from 0 to 0.75, wherein at least one of x, y and z is not equal to 0. The networking structure of the electrolyte establishes an effective lithium-ion transport pathway in the electrode and strengthens the contact between electrode layer and solid-state electrolyte resulting in higher lithium-ion electrochemical cell's cycling stability and longer battery life. Sold-state electrolytes incorporating the ceramic particles demonstrate improved performance.

Abstract: Fabricating a composite solid-state electrolyte (SSE) membrane by infiltrating a porous polymer substrate with a mixture which comprises: (i) polymer precursor, (ii) ceramic nanoparticles with diameters that range from 10 to 2000 nm, (iii) plasticizer and (iv) lithium salt. Curing the mixture yields a solid-state electrolyte which is formed within pores of the substrate. A continuous roll-to-roll system for manufacturing of large-dimension, flexible, ultrathin, high ionic conductivity (SSE) membrane advances a porous polymer substrate through a coating module, multifunctional module for post-treatment curing and calendar unit. The SSE membrane is used in all solid-state lithium-ion electrochemical pouch cells. The SSE membrane exhibits high ionic conductivity over wide temperature range, especially high value in low temperature (?40° C.).

Abstract: In solid-state lithium-ion battery cells, electrolyte-infiltrated composite electrode includes an electrolyte component consisting of polymer matrix with ceramic nanoparticles embedded in the matrix to form networking structure of electrolyte. The networking structure establishes effective lithium-ion transport pathway in the electrode. Electrolyte-infiltrated composite electrode sheets and solid electrolyte membranes can be used in all solid-state lithium electrochemical pouch and coin cells. Solid-state lithium-ion battery is fabricated by: (a) providing an anode layer; (b) providing a cathode layer; (c) positioning a ceramic-polymer composite electrolyte membrane between the anode layer and the cathode layer to form a laminar battery assembly; (d) applying pressure to the laminar battery assembly; and (e) heating the laminar battery assembly.

Abstract: Electrolyte-infiltrated composite electrode includes an electrolyte component consisting of a polymer matrix with ceramic nanoparticles embedded in the matrix to form a networking structure of electrolyte. Suitable ceramic nanoparticles have the basic formula Li7La3Zr2O12 (LLZO) and its derivatives such as AlxLi7-xLa3Zr2-y-zTayNbzO12 where x ranges from 0 to 0.85, y ranges from 0 to 0.50 and z ranges from 0 to 0.75, wherein at least one of x, y and z is not equal to 0. The networking structure of the electrolyte establishes an effective lithium-ion transport pathway in the electrode and strengthens the contact between electrode layer and solid-state electrolyte resulting in higher lithium-ion electrochemical cell's cycling stability and longer battery life. Sold-state electrolytes incorporating the ceramic particles demonstrate improved performance.

Abstract: Ceramic-polymer film includes a polymer matrix, plasticizers, a lithium salt, and a ceramic nanoparticle, LLZO: AlxLi7-xLa3Zr1.75Ta0.25O12 where x ranges from 0 to 0.85. The nanoparticles have diameters that range from 20 to 2000 nm and the film has an ionic conductivity of greater than 1×10?4 S/cm (?20° C. to 10° C.) and larger than 1×10?3 S/cm (?20° C.). Using a combination of selected plasticizers to tune the ionic transport temperature dependence enables the battery based on the ceramic-polymer film to be operable in a wide temperature window (?40° C. to 90° C.). Large size nanocomposite film (area ?8 cm×6 cm) can be formed on a substrate and the concentration of LLZO nanoparticles decreases in the direction of the substrate to form a concentration gradient over the thickness of the film. This large size film can be employed as a non-flammable, solid-state electrolyte for lithium electrochemical pouch cell and further assembled into battery packs.

Abstract: Ceramic-polymer film includes a polymer matrix, plasticizers, a lithium salt, and a ceramic nanoparticle, LLZO: AlxLi7-xLa3Zr1.75Ta0.25O12 where x ranges from 0 to 0.85. The nanoparticles have diameters that range from 20 to 2000 nm and the film has an ionic conductivity of greater than 1×10?4 S/cm (?20° C. to 10° C.) and larger than 1×10?3 S/cm (?20° C.). Using a combination of selected plasticizers to tune the ionic transport temperature dependence enables the battery based on the ceramic-polymer film to be operable in a wide temperature window (?40° C. to 90° C.). Large size nanocomposite film (area ?8 cm×6 cm) can be formed on a substrate and the concentration of LLZO nanoparticles decreases in the direction of the substrate to form a concentration gradient over the thickness of the film. This large size film can be employed as a non-flammable, solid-state electrolyte for lithium electrochemical pouch cell and further assembled into battery packs.