초록 ▼

All-solid-state electrochemical cells and batteries employing very thin film, highly conductive polymeric electrolyte and very thin electrode structures are disclosed, along with economical and high-speed methods of manufacturing. A preferred embodiment is a rechargeable lithium polymer electrolyte

All-solid-state electrochemical cells and batteries employing very thin film, highly conductive polymeric electrolyte and very thin electrode structures are disclosed, along with economical and high-speed methods of manufacturing. A preferred embodiment is a rechargeable lithium polymer electrolyte battery. New polymeric electrolytes employed in the devices are strong yet flexible, dry and non-tacky. The new, thinner electrode structures have strength and flexibility characteristics very much like thin film capacitor dielectric material that can be tightly wound in the making of a capacitor. A wide range of polymers, or polymer blends, characterized by high ionic conductivity at room temperature, and below, are used as the polymer base material for making the solid polymer electrolytes. The preferred polymeric electrolyte is a cationic conductor. In addition to the polymer base material, the polymer electrolyte compositions exhibit a conductivity greater than 1×10-4S/cm at 25° C. or below and contain an electrically conductive polymer, a metal salt, a finely divided ionic conductor, and a finely divided inorganic filler material. Certain rechargeable batteries of the invention provide high specific energy (250 to 350 Wh/kg) (gravimetric) and energy density (450 to 550 Wh/l) (volumetric), high cycle life (1000 cycles), low self-discharge and improved safety.

대표청구항 ▼

All-solid-state electrochemical cells and batteries employing very thin film, highly conductive polymeric electrolyte and very thin electrode structures are disclosed, along with economical and high-speed methods of manufacturing. A preferred embodiment is a rechargeable lithium polymer electrolyte

All-solid-state electrochemical cells and batteries employing very thin film, highly conductive polymeric electrolyte and very thin electrode structures are disclosed, along with economical and high-speed methods of manufacturing. A preferred embodiment is a rechargeable lithium polymer electrolyte battery. New polymeric electrolytes employed in the devices are strong yet flexible, dry and non-tacky. The new, thinner electrode structures have strength and flexibility characteristics very much like thin film capacitor dielectric material that can be tightly wound in the making of a capacitor. A wide range of polymers, or polymer blends, characterized by high ionic conductivity at room temperature, and below, are used as the polymer base material for making the solid polymer electrolytes. The preferred polymeric electrolyte is a cationic conductor. In addition to the polymer base material, the polymer electrolyte compositions exhibit a conductivity greater than 1×10-4S/cm at 25° C. or below and contain an electrically conductive polymer, a metal salt, a finely divided ionic conductor, and a finely divided inorganic filler material. Certain rechargeable batteries of the invention provide high specific energy (250 to 350 Wh/kg) (gravimetric) and energy density (450 to 550 Wh/l) (volumetric), high cycle life (1000 cycles), low self-discharge and improved safety. to electronic parts when the switch is open. 6. A layered substrate comprising: a substrate; and a sheet battery, wherein the substrate and the sheet battery form layers; and wherein the layered substrate is arranged between an electric noise source and a circuit so that the noise of the electric noise source is prevented from affecting the circuit. 7. A layered substrate, comprising: a substrate on which electronic parts are mounted; and a sheet battery, wherein the substrate and the sheet battery stick to each other to form layers; wherein an electrode plate is disposed between the substrate and the sheet battery; wherein the layered substrate has a hole reaching a surface of the electrode plate of the sheet battery; wherein a wire is connectable to the electrode plate through the hole; and wherein electric power is drawable through the wire from the sheet battery. 8. The layered substrate as defined in claim 7, wherein the sheet battery comprises a plurality of layered sheet batteries connected in series, and wherein an electrode plate is disposed between each of said plurality of layered sheet batteries. 9. The layered substrate as defined in claim 8, wherein: the layered substrate has a hole reaching a surface of an electrode plate of one of the plurality of layered sheet batteries; a wire is connectable to the electrode plate through the hole; and electric power is drawable through the wire from the sheet battery. 10. The layered substrate as defined in claim 8, wherein: the layered substrate has two holes respectively reaching surfaces of two electrode plates of two of the plurality of layered sheet batteries; two wires are respectively connectable to the two electrode plates through the two holes; and two kinds of electric power of different voltages are respectively drawable through the two wires from the sheet battery. 11. The layered substrate as defined in claim 7, wherein: the layered substrate is divided into a plurality of areas; and a plurality of kinds of electric power of different voltages are respectively drawable from the plurality of areas. 12. A layered substrate comprising: a substrate on which electronic pails arc mounted; and a sheet battery, wherein: the substrate and the sheet battery stick to each other to form layers; the sheet battery comprises two ground electrode plates; the layered substrate further comprises a switch which electrically connects and disconnects the two ground electrode plates; and power is supplied from the sheet battery to electronic parts mounted on the substrate when the switch is closed, and the power is not supplied from the sheet battery to electronic parts when the switch is open. 13. A layered substrate comprising: a substrate on which electronic parts are mounted; and a sheet battery, wherein the substrate and the sheet battery stick to each other to form layers; and wherein the layered substrate is arranged between an electric noise source and a circuit so that the noise of the electric noise source is prevented from affecting the circuit. 14. A layered substrate, comprising: two substrates on which electronic parts are mounted; and a sheet battery sandwiched between the two substrates, wherein the two substrates and the sheet battery integrally form layers; wherein an electrode plate is disposed between said sheet battery and each of said two substrates; wherein the layered substrate has a hole reaching a surface of an electrode of the sheet battery; wherein a wire is connectable to the electrode through the hole; and wherein electric power is drawable through the wire from the sheet battery. 15. The layered substrate as defined in claim 14, wherein the sheet battery comprises a plurality of layered sheet batteries connected in series, and wherein an electrode plate is disposed between each of said plurality of layered sheet batteries. 16. The layered substrate as defined in claim 15, wherei n: the layered substrate has a hole reaching a surface of an electrode plate of one of the plurality of layered sheet batteries; a wire is connectable to the electrode plate through the hole; and electric power is drawable through the wire from the sheet battery. 17. The layered substrate as defined in claim 15, wherein: the layered substrate has two holes respectively reaching surfaces of two electrode plates of two of the plurality of layered sheet batteries; two wires are respectively connectable to the two electrode plates through the two holes; and two kinds of electric power of different voltages are respectively drawable through the two wires from the sheet battery. 18. The layered substrate as defined in claim 14, wherein: the layered substrate is divided into a plurality of areas; and a plurality of kinds of electric power of different voltages are respectively drawable from the plurality of areas. 19. A layered substrate comprising: two substrates on which electronic parts are mounted; and a sheet battery sandwiched between the two substrates, wherein the two substrates and the sheet battery integrally form layers; the sheet battery comprises two ground electrode plates; the layered substrate further comprises a switch which electrically connects and disconnects the two ground electrode plates; and power is supplied from the sheet battery to electronic parts mounted on the substrate when the switch is closed, and the power is not supplied from the sheet battery to electronic parts when the switch is open. 20. A layered substrate comprising: two substrates on which electronic parts are mounted; and a sheet battery sandwiched between the two substrates, wherein the two substrates and the sheet battery integrally form layers, and wherein the layered substrate is arranged between an electric noise source and a circuit so that the noise of the electric noise source is prevented from affecting the circuit. 21. A layered substrate comprising: two substrates on which electronic parts are mounted; and a sheet battery sandwiched between the two substrates, wherein: the two substrates and the sheet battery integrally form layers; one of the two substrates has a first pattern on which a digital circuit processing digital signals and including a noise source is mounted; and the other of the two substrates has a second pattern on which an analog circuit processing analog signals is mounted so that noise of the noise source is prevented from affecting the analog circuit.