Hybrid CFx–Ag2V4O11 as a high-energy, power density cathode for application in an underwater acoustic microtransmitter

Journal Article · Thu Dec 01 04:00:00 EST 2011 · Electrochemistry Communications

DOI:https://doi.org/10.1016/j.elecom.2011.08.006· OSTI ID:1030463

Meduri, Praveen; Chen, Honghao; Chen, Xilin; Xiao, Jie; Gross, Mark E; Carlson, Thomas J; Zhang, Jiguang; Deng, Zhiqun

This study demonstrates the excellent electrochemical performance of the hybrid carbon fluoride(CFx)/silver vanadium oxide(SVO)/graphene(G) cathode and its potential utilization in Acoustic Telemetry System Transmitter (ATST). The impedance increase issue caused by LiF formation from CFx is effectively addressed by the deposition of conductive silver metal from the reduction of SVO aided by the coexistence of graphene additive thus a prolonged operation voltage is observed with enhanced electronic conductivity throughout the whole discharge process. In particular, the hybrid shows capacity retention of {approx}462 mAhg-1 at 5C rate and 661 mAhg-1 at 1C rate. The peak current delivered from the as-designed hybrid cathode is improved compared with that of commercial Zn/Ag2O batteries suggesting the possibility of the further reduction on the size/weight of the micro batteries which is critical for the transmitters.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1030463
• Report Number(s): PNNL-SA-81110; 400403209
• Journal Information: Electrochemistry Communications, Journal Name: Electrochemistry Communications Journal Issue: 12 Vol. 13; ISSN 1388-2481
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ACOUSTICS
ADDITIVES
CAPACITY
CARBON
CATHODES
Carbon fluoride
silver vanadium oxide
high power density
cathode
primary lithium battery
micro battery
DEPOSITION
IMPEDANCE
PERFORMANCE
POWER DENSITY
RETENTION
SILVER
TELEMETRY
VANADIUM