Invention Grant
- Patent Title: Internal hybrid electrochemical energy storage cell having both high power and high energy density
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Application No.: US15724892Application Date: 2017-10-04
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Publication No.: US10707025B2Publication Date: 2020-07-07
- Inventor: Songhai Chai , Aruna Zhamu , Bor Z. Jang
- Applicant: Nanotek Instruments, Inc.
- Applicant Address: US OH Dayton
- Assignee: Nanotek Instruments Group, LLC
- Current Assignee: Nanotek Instruments Group, LLC
- Current Assignee Address: US OH Dayton
- Main IPC: H01G11/06
- IPC: H01G11/06 ; H01M4/38 ; H01M4/48 ; H01G11/48 ; H01G11/50 ; H01G11/26 ; H01G11/36 ; H01G11/34 ; H01G11/86 ; C01B32/198 ; C01B32/192 ; C01B32/10 ; H01M12/00 ; C01B32/225 ; H01M4/02 ; H01G11/56 ; H01G11/62 ; B82Y40/00 ; B82Y30/00

Abstract:
Provided is an internal hybrid electrochemical cell comprising: (A) a pseudocapacitance cathode comprising a cathode active material that contains both graphene sheets and a porphyrin complex, wherein said porphyrin complex is bonded to or supported by primary surfaces of said graphene sheets to form a redox pair for pseudocapacitance; (B) a battery-like anode comprising lithium metal, lithium metal alloy, or a prelithiated anode active material (e.g. prelithiated Si, SiO, Sn, SnO2, etc.), and (C) a lithium-containing electrolyte in physical contact with the anode and the cathode; wherein the cathode active material has a specific surface area no less than 100 m2/g which is in direct physical contact with the electrolyte.
Public/Granted literature
- US20190103232A1 INTERNAL HYBRID ELECTROCHEMICAL ENERGY STORAGE CELL HAVING BOTH HIGH POWER AND HIGH ENERGY DENSITY Public/Granted day:2019-04-04
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