# US 12,002,921 B2 · Solid-state silver-lithium / iodine dual-function battery formed via self-assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,002,921 B2 - Document ID: US12002921B2 - Status: Granted - Kind: B2 - Application number: 15/749,480 - Filed: 2016-08-01 - Published: 2018-08-09 - Granted: 2024-06-04 - Earliest claimed: 2015-08-03 - Assignees: The Research Foundation for The State University of New York - Applicants: The Research Foundation for the State University of New York - Inventors: Esther S. Takeuchi; Kenneth J. Takeuchi; Amy C. Marschilok - Web page: https://patentgrep.com/patent/US12002921B2 ## CPC - H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries - H01M 10/052: Li-accumulators - H01M 10/0562: Solid materials - H01M 10/0567: characterised by the additives - H01M 10/0568: characterised by the solutes - H01M 10/446: {Initial charging measures} - H01M 50/46: Separators, membranes or diaphragms characterised by their combination with electrodes - H01M 50/497: Ionic conductivity - Y02E 60/10: Energy storage using batteries - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A novel silver-lithium-iodine solid-state energy device and system are disclosed. The rechargeable, self-assembled, dual-function, metal-iodide battery exhibits small size and high deliverable power. Inert until activation, the device may be stored for long periods of time. Upon activation, the device assembles the required electrochemical moieties for operation without external intervention. The device limits short-circuiting and self-discharge of the system by spontaneous reactions at the electrode/electrolyte interfaces, and thus is self-healing. By incorporating both silver and lithium in the same system, a dual function is achieved, whereby the characteristics of a lithium-based battery dominate at a low load and those of a silver-based battery dominate under a high load. ## Claims ### Claim 1 An energy storage device comprising: first and second conductive contacts; a separator and an electrolyte located between the first and second conductive contacts; wherein both the separator and electrolyte comprise lithium iodide and a silver-containing ionic conductor; and wherein said lithium iodide and said silver-containing ionic conductor that provide said electrolyte are in a uniform mixture. ### Claim 2 (depends on 1) The energy storage device of claim 1, wherein the silver-containing ionic conductor is silver iodide. ### Claim 3 (depends on 2) The energy storage device of claim 2, wherein: the first conductive contact comprises iodine; and the second conductive contact comprises lithium and silver. ### Claim 4 (depends on 3) The energy storage device of claim 3, further comprising: an additive selected from the group consisting of aluminum oxide and compositions having the formula MAg4I5 where M=Rb, K, NH4, or other univalent cations. ### Claim 5 (depends on 2) The energy storage device of claim 2, wherein: the molar ratio of silver to lithium in the energy storage device is less than or equal to 0.25. ### Claim 6 (depends on 2) A method of making the energy storage device of claim 2, the method comprising: interposing a uniform mixture of silver iodide and lithium iodide between the first and second conductive contacts; and activating the energy storage device by applying an initial voltage between the first and second conductive contacts. ### Claim 7 (depends on 6) The method of claim 6, further comprising: forming silver metal at the second conductive contact upon activation of the energy storage device. ### Claim 8 (depends on 6) The method of claim 6, further comprising: forming lithium metal at the second conductive contact upon activation of the energy storage device. ### Claim 9 (depends on 6) The method of claim 6, further comprising: forming a mixture of silver metal and lithium metal at the second conductive contact upon activation of the energy storage device. ### Claim 10 (depends on 6) The method of claim 6, further comprising: forming elemental iodine at the first conductive contact upon activation of the energy storage device. ### Claim 11 (depends on 6) The method of claim 6, further comprising: forming the separator and the electrolyte between the first and second conductive contacts upon activation of the energy storage device. ### Claim 12 (depends on 2) A method of using the energy storage device of claim 2, wherein: a current is allowed to flow through an external circuit including a load. ### Claim 13 (depends on 12) The method of claim 12, wherein: the load is powered by the current flowing through the external circuit. ### Claim 14 (depends on 13) The method of claim 13, wherein the load is a sensor. ### Claim 15 (depends on 13) The method of claim 13, wherein the load is an automotive device. ### Claim 16 (depends on 13) The method of claim 13, wherein the load is a telemetry device. ### Claim 17 (depends on 13) The method of claim 13, wherein the load is a communications device. ### Claim 18 (depends on 13) The method of claim 13, wherein the load is an uninterruptable power supply. ### Claim 19 (depends on 13) The method of claim 13, wherein the load is a medical device. ### Claim 20 (depends on 19) The method of claim 19, wherein the medical device is an implantable device. ### Claim 21 An energy storage device comprising: first and second conductive contacts; a separator and an electrolyte located between the first and second conductive contacts; wherein both the separator and electrolyte comprise lithium iodide and silver iodide; and wherein said lithium iodide and said silver iodide that provide said electrolyte are in a uniform mixture.