Cycle-life sensor for rechargeable lithium batteries. Phase 1

Technical Report · Mon Aug 15 04:00:00 UTC 1988

OSTI ID:7254896

Koch, V R

The research addressed the problem of characterizing the state of a rechargeable Li battery as a function of cycle life history. Because all Li batteries are hermetically sealed, researchers chose to evaluate the amount and distribution of Li-electrolyte degradation products in situ by the application of electroanalytical techniques at microelectrodes imbedded in the cell package. Good correlations between Li stripping currents and cycle life were achieved in Li/Li half cells. However, when the electroanalytical technique was employed in Li/TiS2 full cells, no systematic trend was found. Moreover, Li-electrolyte degradation products were found to be either insoluble or electroinactive over the available electrochemical window. Thus, this approach to predicting rechargeable Li battery cycle life has no commercial utility.

• Research Organization: Covalent Associates, Inc., Woburn, MA (United States)
• OSTI ID: 7254896
• Report Number(s): PB-92-225101/XAB; CNN: NSF-ISI8760148
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250902* -- Energy Storage-- Batteries-- Performance & Testing
CHARGE STATE
CHEMICAL REACTIONS
DECOMPOSITION
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTROLYTES
LIFETIME
LITHIUM-SULFUR BATTERIES
METAL-NONMETAL BATTERIES
MONITORING
ON-LINE MEASUREMENT SYSTEMS
ON-LINE SYSTEMS
SERVICE LIFE