Development of advanced secondary zinc cells for power-source applications

Technical Report · Sun Dec 01 00:00:00 EST 1991

DOI:https://doi.org/10.2172/5043530· OSTI ID:5043530

Chen, Jenn-Shing; McLarnon, F R; Cairns, E J

The general advantages of Zn/AgO batteries are high specific energy, high discharge rate capability, good charge acceptance, and low self-discharge rate. However, the principal disadvantages of high cost and short cycle life have limited the use of this battery to applications where high specific energy is the prime requisite, such as military and flight applications, portable electronic equipment, etc. The major objectives of this research project are to improve the Zn/AgO cell cycle life and increases its performance. The redistribution of Zn active material (shape change) and the growth of Zn dendrites (which leads to cell shorting) have been identified as primary factors that limit the cycle-life performance of Zn/AgO cells. These phenomena can be largely overcome by improvements in separator materials, and by additives to the electrode and electrolyte. Recent development work on Zn/AgO cells has been concentrated in the area of Zn electrode and separator improvements to extend the lifetimes of cells.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOD; Department of Defense, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5043530
• Report Number(s): LBL-31931; ON: DE92016358
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
METAL-METAL OXIDE BATTERIES
PERFORMANCE
ELECTROLYTES
POTASSIUM HYDROXIDES
SILVER OXIDES
ZINC
ALKALI METAL COMPOUNDS
CHALCOGENIDES
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELEMENTS
HYDROGEN COMPOUNDS
HYDROXIDES
METALS
OXIDES
OXYGEN COMPOUNDS
POTASSIUM COMPOUNDS
SILVER COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
250902* - Energy Storage- Batteries- Performance & Testing