Carbon blacks as cathode materials for rechargeable lithium cells

Journal Article · Mon Jun 01 04:00:00 EDT 1987 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2100665· OSTI ID:6126930

Watanabe, A; Mori, K; Ishikawa, H; Nakamura, Y

Various carbon blacks as cathode materials for rechargeable lithium cells were investigated. The charge capacity of lithium cells were approximately proportional to the surface area of carbon blacks. Ketjen black EC has the highest surface area (950m/sup 2//g) and exhibited the highest discharge capacity (398 Ah/kg) in our experiments where cutoff potentials were 1.0V vs Li/Li/sup +/ on discharge and 4.5V on charge. The Ketjen black EC cathode also showed good cycling characteristics at a constant capacity (50 Ah/kg). In contrast to this, acetylene black, which has a higher crystalline structure and smaller surface area, exhibited a lower discharge capacity (6Ah/kg). Such differences of features for various carbon black cathodes were clearly observed in cyclic voltammetry measurements.

• Research Organization: Dept. of Applied Chemistry, Faculty of Engineering, Iwate Univ., Ueda, Morioka 020
• OSTI ID: 6126930
• Journal Information: J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 134:6; ISSN JESOA
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ACETYLENE
ALKYNES
BATTERY CHARGING
CAPACITY
CARBON
CARBON BLACK
CATHODES
CRYSTAL STRUCTURE
ELECTRIC BATTERIES
ELECTRIC DISCHARGES
ELECTRIC POTENTIAL
ELECTROCHEMICAL CELLS
ELECTRODES
ELEMENTS
HYDROCARBONS
MATERIALS TESTING
NONMETALS
ORGANIC COMPOUNDS
PERFORMANCE TESTING
RESEARCH PROGRAMS
SURFACE AREA
SURFACE PROPERTIES
TESTING
VOLTAMETRY