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A new chemical approach to improving discharge capacity of Li/(CFx)n cells by Ganesan Nagasubramanian; Bryan Sanchez is a Engineering article available to read on EtoBox.
What is A new chemical approach to improving discharge capacity of Li/(CFx)n cells about?
Although (CF x ) n has the highest theoretical specific energy of all lithium primary batteries known, the practical specific energy (including packaging) is very small on the order of ∼10% for small capacity cells ( 100 Ah). Even these can be achieved only at a very low discharge rate <C/250 (250 h rate). If either the discharge rate is increased or the discharge temperature is reduced below 0 • C the % delivered energy goes down even further. At Sandia National Laboratories we are performing research to improving % delivered energy by: (1) incorporating engineering solution and (2) adopting a new chemical approach. The engineering solution effort will not be discussed here except to mention that light weight metal such as titanium (Ti) will be considered for hardware instead of stainless steel. The chemical approach involves adding an anion-binding-agent (ABA) to the electrolyte solution to dissolve the LiF generated in the discharge reaction. We studied three boron containing neutral ABAs and the most promising ABA {Tris (1,1,1,3,3,3-hexafluoroisopropyl)borate} will be discussed further. The delivered capacity/energy (per unit weight of the cathode) is higher for SNL-built coin
Who reads A new chemical approach to improving discharge capacity of Li/(CFx)n cells?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Ganesan Nagasubramanian; Bryan Sanchez
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0378-7753)
- Published
- 2007
- Language
- EN
- Field
- Engineering (Physical Sciences)