Lithium intercalation in porous carbon anodes

Conference · Wed Nov 23 00:00:00 EST 1994

OSTI ID:161456

Tran, T D; Pekala, R W ^[1]; Mayer, S T ^[2]

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1. Lawrence Livermore National Lab., CA (United States). Chemistry and Materials Science Dept.
2. Polystor Corp., Livermore, CA (United States)

Carbon foams derived from the phase separation of polyacrylonitrile/solvent mixtures were investigated as lithium intercalation anodes for rechargeable lithium-ion batteries. The carbon foams have a bulk density of 0.35--0.5 g/cm{sup 3}, low surface area (< 50 m{sup 2}/g), and an average cell size of 5--10 {mu}m. Polyacrylonitrile-based carbon foams doped with phosphoric acid had capacity as high as 450 mAh/g. Carbon capacity increased with increasing phosphoric acid concentration in the doping solution. The doped porous carbon anodes exhibited good cyclability and excellent coulombic efficiency.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 161456
• Report Number(s): UCRL-JC-119221; CONF-941144-178; ON: DE96002653; TRN: AHC29601%%11
• Resource Relation: Conference: Fall meeting of the Materials Research Society (MRS), Boston, MA (United States), 28 Nov - 9 Dec 1994; Other Information: PBD: 23 Nov 1994
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
ELECTRIC BATTERIES
ANODES
PERFORMANCE
CLATHRATES
CARBONACEOUS MATERIALS
LITHIUM CARBIDES
PHOSPHORUS
CATALYTIC EFFECTS
NITRILES
ORGANIC POLYMERS
ELECTRIC POTENTIAL
IMPREGNATION
DOPED MATERIALS