Effect of electrode density on cycle performance and irreversible capacity loss for natural graphite anode in lithium ion batteries

Journal Article · Mon Dec 02 00:00:00 EST 2002 · Journal of Power Sources

OSTI ID:815373

Shim, Joongpyo; Striebel, Kathryn A

The effect of electrode thickness and density for unpressed and pressed natural graphite electrodes were studied using electrochemical characterization. Pressing the graphite electrode decreases the reversible capacity and the irreversible capacity loss during formation. As electrode density increased, the capacity retention at high rate increased until 0.9g/cm{sup 3}, and then decreased. The cycle performances of the pressed graphite electrodes were more stable than the unpressed one. Pressing graphite electrode affected on its electrochemical characterization such as irreversible capacity loss, high rate cycling and cycle performance.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Assistant Secretary for Energy Efficiency and Renewable Energy. FreedomCAR & Vehicle Technologies Program (US)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 815373
• Report Number(s): LBNL-52853; JPSODZ; R&D Project: 674501; TRN: US200319%%187
• Journal Information: Journal of Power Sources, Vol. 119-121C; Other Information: Journal Publication Date: June 1, 2003; PBD: 2 Dec 2002; ISSN 0378-7753
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
ANODES
CAPACITY
ELECTRODES
GRAPHITE
LITHIUM IONS
PERFORMANCE
PRESSING
RETENTION
THICKNESS
ELECTRIC BATTERIES
LITHIUM-ION BATTERY NATURAL GRAPHITE ANODE