Dissertation > Excellent graduate degree dissertation topics show

Discharge Characteristic and Microcosmic Mechanism of Li-B Alloys as Anode in Thermal Batteries

Author: LiuChao
Tutor: LiuZhiJian
School: Central South University
Course: Materials Science and Engineering
Keywords: thermal battery Lithium-boron alloys dischargecharacteristic capacity loss microcosmic mechanism
CLC: TM915
Type: Master's thesis
Year: 2013
Downloads: 23
Quote: 0
Read: Download Dissertation

Abstract


Li-B alloy has an excellent electrochemistry performance as a promising anode of thermal batteries. However, the voltage and capacity of Li-B alloy was unstable in some special situation when Li-B alloys applied in thermal batteries. Discharge characteristic of Li-B anode in molten salt battery with system Li-B alloy/CoS2have been studied, microstructure of cell section has been observed in this article. The main results were summarized as follows:Discharge characteristics were known through changing discharge conditions and lithium content in the single cell tests. It shows that, to different content of Li samples, the discharge voltage will decrease when the test temperature is high. A lower current density and higher discharge temperature can lead to the decrease of battery capacity. Magnesium can improve the thermal stability and anti-nitride ability of Li-B alloys, but also can make the final voltage decline and decrease the battery effective capacity. The microstructure Li-B alloys single cell shows obviously that thickness of anode was reduced, some holes were produced since the lithium was consumed. The section of electrolyte and cathode show some layers.It shows that the effect of electrolyte filling to the holes has a obvious influence to the voltage and capacity by changing the electrolyte and separator. The morphology of separator can affect the flow of electrolyte. Increase the electrolyte thickness can obviously improve the battery capacity. Batteries load test approved that lithium will be dissolved in electrolyte.The capacity loss model when Li-B alloys discharged was established, and it can explain related phenomenon in discharge process.

Related Dissertations

  1. Estimation of VAT revenue capacity,F812.42
  2. Study of Premature Capacity Loss on VRLA Batteries,TM912
  3. Limited feedback MIMO wireless communication system capacity simulation,TN914
  4. Its family atmosphere CH_3N oxide reaction process Quantum Chemistry and Electron Density Topological Study,O621.25
  5. Studies on Synthesis, Characterization and Electrochemical Performance of LiFePO4/C,O646
  6. Force Analysis of Web Plate and Research on Prestressing Loss of the Prestressed Concrete Box Girder Bridge,U441
  7. The Investigation of LiNixCoyMn1-x-yO2 as Cathode Materials and Their Corresponding Electrolyte Additive for Lithium-ion Batteries,TM912
  8. Preparation and properties of oxide cathode material of lithium thermal battery embedded design,TM911
  9. Research on the Key Technology of Activity-Based Costing Management System,TP315
  10. Studies on Performance Decay of Lithium Ion Cells and Electrode Interfaces,TM912
  11. Research on User Selection with Precoding in MIMO Systems,TN919.3
  12. Microcosmic Mechanism Research on Superhydrophobic Materials of Bionic Water Strider Robot,TP242
  13. Research on Modification of Li[Li0.2Mn0.54Ni0.13Co0.13]O2Cathode Material for Lithium-ion Batteries,TM912
  14. Synthesis and Discharge Mechanism of Composite Vanadium Oxides Cathode Materials for Thermal Cell,TM912
  15. A Study on Venture Capital in the Capital Market of China,F832.48
  16. Research on Mechanism of Water Resource Repaying Foreign Capitals,F426.91
  17. Study on the Evolution Mechanism of Regional Logistics System,F252
  18. Synthesis of CoS2and Preparation of Thin-film Electrode for Thermal Battery,TM915
  19. Research on Application of cathode materials processing technology and in thermal battery,TM912
  20. Research on Chemical-mechanical Coupling Effect and Salt Precipitation Characteristics of Porous Storage Salt Aggregate in Asphalt Pavement,U416.217

CLC: > Industrial Technology > Electrotechnical > Independent power supply technology (direct power) > Thermionic hot-electron transducer
© 2012 www.DissertationTopic.Net  Mobile