Carbonaceous materials as lithium intercalation anodes

Conference · Sat Oct 01 04:00:00 EDT 1994

OSTI ID:147725

Tran, T D; Feikert, J H ^[1]; Mayer, S T ^[2]; Song, X; Kinoshita, K ^[3]

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1. Lawrence Livermore National Lab., CA (United States)
2. Polystor, Livermore, CA (United States)
3. Lawrence Berkeley Lab., CA (United States)

Commercial and polymer-derived carbonaceous materials were examined as lithium intercalation anodes in propylene carbonate (pyrolysis < 1350C, carbons) and ethylene carbonate/dimethyl carbonate (graphites) electrolytes. The reversible capacity (180--355 mAh/g) and the irreversible capacity loss (15--200 % based on reversible capacity) depend on the type of binder, carbon type, morphology, and phosphorus doping concentration. A carbon-based binder was chosen for electrode fabrication, producing mechanically and chemically stable electrodes and reproducible results. Several types of graphites had capacity approaching LiC{sub 6}. Petroleum fuel green cokes doped with phosphorous gave more than a 20 % increase in capacity compared to undoped samples. Electrochemical characteristics are related to SEM, TEM, XRD and BET measurements.

• Research Organization: Lawrence Livermore National Lab., CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098; W-7405-ENG-48
• OSTI ID: 147725
• Report Number(s): UCRL-JC--117265; CONF-941063--15; ON: DE96002658
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
36 MATERIALS SCIENCE
40 CHEMISTRY
ANODES
CARBONACEOUS MATERIALS
CLATHRATES
ELECTROCHEMISTRY
LITHIUM