Polyacene as an anode in lithium ion batteries
- Univ. of Science and Technology, Beijing (China). Lab. of Solid Ionics
- Beijing Research Inst. of Chemical Industry (China)
Polyacene was prepared from a phenol-formaldehyde resin by pyrolysis under an inert atmosphere, whose morphological structures was shown to be amorphous and porous. The electrochemical properties of Li/polyacene cells using an 1M LiClO[sub 4] solution of ethylene carbonate (EC) and propylene carbonate (PC) as electrolyte were studied by means of constant current cycle and cyclic voltammetry. This cell was found to have a coulometric efficiency of more than 95% and a discharge plateau at around 0.4 V. The results shows that polyacene possesses reversibility for the intercalation or de-intercalation of lithium ions in the structure due to its larger surface area (ca. 1,500 m[sup 2]/g) and wider lamellar distance (0.3912 nm). In the voltage range between 2.0 and 4.0 V, a rocking chair battery of the type, ([minus])polyacene/Li-ClO[sub 4] + PC + EC/polyaniline(+), can be reversibly cycled many times with a capacity of 35 mAh/g.
- OSTI ID:
- 6108517
- Journal Information:
- Journal of the Electrochemical Society; (United States), Vol. 140:7; ISSN 0013-4651
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
METAL-NONMETAL BATTERIES
ANODES
PERFORMANCE
POLYMERS
MORPHOLOGY
AMORPHOUS STATE
CHEMICAL PREPARATION
CHLORATES
EFFICIENCY
ELECTRIC POTENTIAL
ELECTROCHEMISTRY
LITHIUM
LITHIUM COMPOUNDS
POROUS MATERIALS
VOLTAMETRY
X-RAY DIFFRACTION
ALKALI METAL COMPOUNDS
ALKALI METALS
CHEMISTRY
CHLORINE COMPOUNDS
COHERENT SCATTERING
DIFFRACTION
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELEMENTS
HALOGEN COMPOUNDS
MATERIALS
METALS
OXYGEN COMPOUNDS
SCATTERING
SYNTHESIS
250903* - Energy Storage- Batteries- Materials
Components
& Auxiliaries
250902 - Energy Storage- Batteries- Performance & Testing
360602 - Other Materials- Structure & Phase Studies