Application of metallocenes in rechargeable lithium batteries for overcharge protection

Journal Article · Wed Jan 01 00:00:00 EST 1992 · Journal of the Electrochemical Society; (United States)

DOI:https://doi.org/10.1149/1.2069200· OSTI ID:5332886

Golovin, M N; Wilkinson, D P; Dudley, J T; Holonko, D; Woo, S ^[1]

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1. Moli Energy Ltd., Burnaby, British Columbia V5C 4G2 (CA)

One problem encountered in the development of rechargeable lithium batteries is the protection of individual cells from overcharging. In this paper the addition of metallocene derivatives to cell electrolytes to provide overcharge protection was investigated. Eleven ferrocene derivatives were studied in terms of their redox potentials and mass transport properties in electrochemical cells and AA-size Li/Li{sub x}MnO{sub 2} rechargeable cells employing 1M LiAsF{sub 6} in 50/50 volume percent propylene carbonate/ethylene carbonate (PC/EC) as the electrolyte. The chemical and electrochemical properties of these metallocene derivatives were also studied in terms of the chemical stability of the derivatives toward cell components and electrochemical reversibility in long-term cycling studies. It was found that adsorption of one derivative, dimethylaminomethylferrocene, on the Li{sub x}MnO{sub 2} electrode ({Delta}G{sub ads} = {minus}3.8 kcal mol{sup {minus}1} based on the Langmuir adsorption isotherm), blocked the intercalation of Li{sup +} ions in the Li{sub x}MnO{sub 2} electrode.

• OSTI ID: 5332886
• Journal Information: Journal of the Electrochemical Society; (United States), Vol. 139:1; ISSN 0013-4651
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
30 DIRECT ENERGY CONVERSION
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ELECTRIC BATTERIES
FABRICATION
ELECTROCHEMICAL CELLS
MASS TRANSFER
FERROCENE
ELECTROCHEMISTRY
REDOX POTENTIAL
LITHIUM
MANGANESE OXIDES
ELECTRODES
ELECTROLYTES
PROPYLENE
ALKALI METALS
ALKENES
CHALCOGENIDES
CHEMISTRY
COMPLEXES
DIENES
ELEMENTS
HYDROCARBONS
IRON COMPLEXES
MANGANESE COMPOUNDS
METALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLYENES
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS
250901* - Energy Storage- Batteries- Design & Development
250903 - Energy Storage- Batteries- Materials
Components
& Auxiliaries
300505 - Fuel Cells- Electrochemistry
Mass Transfer & Thermodynamics
400400 - Electrochemistry