Surface modifications for carbon lithium intercalation anodes

Patent · Sat Jan 01 00:00:00 EST 2000

OSTI ID:873125

Tran, Tri D ^[1]; Kinoshita, Kimio ^[2]

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1. Livermore, CA
2. Cupertino, CA

A prefabricated carbon anode containing predetermined amounts of passivating film components is assembled into a lithium-ion rechargeable battery. The modified carbon anode enhances the reduction of the irreversible capacity loss during the first discharge of a cathode-loaded cell. The passivating film components, such as Li.sub.2 O and Li.sub.2 CO.sub.3, of a predetermined amount effective for optimal passivation of carbon, are incorporated into carbon anode materials to produce dry anodes that are essentially free of battery electrolyte prior to battery assembly.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: Regents of University of California (Oakland, CA)
• Patent Number(s): US 6096454
• OSTI ID: 873125
• Country of Publication: United States
• Language: English

Related Subjects

surface
modifications
carbon
lithium
intercalation
anodes
prefabricated
anode
containing
predetermined
amounts
passivating
film
components
assembled
lithium-ion
rechargeable
battery
modified
enhances
reduction
irreversible
capacity
loss
discharge
cathode-loaded
cell
amount
effective
optimal
passivation
incorporated
materials
produce
dry
essentially
free
electrolyte
prior
assembly
battery assembly
battery electrolyte
carbon anode
rechargeable battery
essentially free
surface modification
anode materials
anode material
amount effective
lithium intercalation
predetermined amount
anode containing
predetermined amounts
surface modifications
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