Current status of solid-state lithium batteries employing solid redox polymerization cathodes

Conference · Fri Mar 01 00:00:00 EST 1991

OSTI ID:5486098

Visco, S J; Doeff, M M; De Jonghe, L C

The rapidly growing demand for secondary batteries having high specific energy and power has naturally led to increased efforts in lithium battery technology. Still, the increased safety risks associated with high energy density systems has tempered the enthusiasm of proponents of such systems for use in the consumer marketplace. The inherent advantages of all-solid-state batteries in regards to safety and reliability are strong factors in advocating their introduction to the marketplace. However, the low ionic conductivity of solid electrolytes relative to non-aqueous liquid electrolytes implies low power densities for solid-state systems operating at ambient temperatures. Recent advances in polymer electrolytes have led to the introduction of solid electrolytes having conductivities in the range of 10{sup {minus}4} (ohm cm){sup {minus}1} at room temperature; this is still two orders of magnitude lower than liquid electrolytes. Although these improved ambient conductivities put solid-state batteries in the realm of practical devices, it is clear that solid-state batteries using such polymeric separators will be thin-film devices. Fortunately, thin-film fabrication techniques are well established in the plastics and paper industry, and present the possibility of continuous web-form manufacturing. This style of battery manufacture should make solid polymer batteries very cost- competitive with conventional secondary cells. In addition, the greater geometric flexibility of thin-film solid-state cells should provide benefits in terms of the end-use form factor in device design. This work discusses the status of solid redox polymerization cathodes. 7 refs., 7 figs.

• Research Organization: Lawrence Berkeley Lab., CA (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5486098
• Report Number(s): LBL-30696; CONF-910344-2; ON: DE91016988
• Resource Relation: Conference: 5. international seminar on lithium battery technology and applications, Deerfield Beach, FL (United States), 4-8 Mar 1991
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
CATHODES
PERFORMANCE
ELECTRIC BATTERIES
ORGANIC POLYMERS
CURRENT DENSITY
ELECTROLYTES
ENERGY DENSITY
LITHIUM COMPOUNDS
SULFIDES
THICKNESS
ALKALI METAL COMPOUNDS
CHALCOGENIDES
DIMENSIONS
ELECTROCHEMICAL CELLS
ELECTRODES
ORGANIC COMPOUNDS
POLYMERS
SULFUR COMPOUNDS
250903* - Energy Storage- Batteries- Materials
Components
& Auxiliaries
250902 - Energy Storage- Batteries- Performance & Testing