Nanodisperse transition metal electrodes (NTME) for electrochemical cells
- Oakland, CA
- Sunnyvale, CA
Disclosed are transition metal electrodes for electrochemical cells using gel-state and solid-state polymers. The electrodes are suitable for use in primary and secondary cells. The electrodes (either negative electrode or positive electrode) are characterized by uniform dispersion of the transition metal at the nanoscale in the polymer. The transition metal moiety is structurally amorphous, so no capacity fade should occur due to lattice expansion/contraction mechanisms. The small grain size, amorphous structure and homogeneous distribution provide improved charge/discharge cycling performance, and a higher initial discharge rate capability. The cells can be cycled at high current densities, limited only by the electrolyte conductivity. A method of making the electrodes (positive and negative), and their usage in electrochemical cells are disclosed.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- DOE Contract Number:
- AC03-76SF00098
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 6165641
- OSTI ID:
- 873464
- Country of Publication:
- United States
- Language:
- English
Performance of lithiummanganese oxide spinel electrodes in a lithium polymer electrolyte cell
|
journal | February 1991 |
Rechargeable Li/LiMn2O4 batteries with a polymeric solid electrolyte
|
journal | January 1993 |
Novel Nanodisperse Composite Cathode for Rechargeable Lithium/Polymer Batteries
|
journal | May 1997 |
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Related Subjects
transition
metal
electrodes
ntme
electrochemical
cells
disclosed
gel-state
solid-state
polymers
suitable
primary
secondary
negative
electrode
positive
characterized
uniform
dispersion
nanoscale
polymer
moiety
structurally
amorphous
capacity
fade
occur
due
lattice
expansion
contraction
mechanisms
grain
size
structure
homogeneous
distribution
provide
improved
charge
discharge
cycling
performance
initial
rate
capability
cycled
current
densities
limited
electrolyte
conductivity
method
usage
provide improved
current densities
metal electrode
positive electrode
electrochemical cells
negative electrode
electrochemical cell
transition metal
grain size
metal electrodes
secondary cell
rate capability
uniform dispersion
discharge rate
secondary cells
charge rate
discharge cycling
improved charge
provide improve
cycling performance
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