Invention Application
US20120045688A1 Lithium super-battery with a functionalized nano graphene cathode
有权
具有功能化纳米石墨烯阴极的锂超级电池
- Patent Title: Lithium super-battery with a functionalized nano graphene cathode
- Patent Title (中): 具有功能化纳米石墨烯阴极的锂超级电池
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Application No.: US12806679Application Date: 2010-08-19
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Publication No.: US20120045688A1Publication Date: 2012-02-23
- Inventor: Chenguang Liu , Aruna Zhamu , David Neff , Bor Z. Jang
- Applicant: Chenguang Liu , Aruna Zhamu , David Neff , Bor Z. Jang
- Main IPC: H01M10/052
- IPC: H01M10/052 ; H01M10/0563

Abstract:
An electrochemical energy storage device, lithium super-battery, comprising a positive electrode, a negative electrode, a porous separator disposed between the two electrodes, and a lithium-containing electrolyte in physical contact with the two electrodes, wherein the positive electrode comprises a plurality of chemically functionalized nano graphene platelets (f-NGP) or exfoliated graphite having a functional group that reversibly reacts with a lithium atom or ion. In a preferred embodiment, a lithium super-battery having a f-NGP positive electrode and Li4Ti5O12 negative electrode exhibits a gravimetric energy ˜5 times higher than conventional supercapacitors and a power density ˜10 times higher than conventional lithium-ion batteries. This device has the best properties of both the lithium ion battery and the supercapacitor.
Public/Granted literature
- US08795899B2 Lithium super-battery with a functionalized nano graphene cathode Public/Granted day:2014-08-05
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