Cast thermal battery electrodes and separators using a salt binder
| DWPI Title: Method for fabricating cast thermal battery film involves mixing salt binder solution and active material mixture to form slurry to be cast on substrate, and removing solvent from cast film to bring salt binder out of solution to bind film |
| Abstract: Cast components can improve the effectiveness of current state-of-the-art in thermal battery processing technology in terms of cost, labor, materials usage, and flexibility. Cast components can include cast cathodes, anodes, and separators. |
| Use: Method for fabricating cast thermal battery film. |
| Advantage: The method replaces the pellet electrode processing and configuration with a cast electrode process enabled by a salt binder of alkali halide salts or a mixture of such salts and benefits of cast electrodes over pressed pellets are numerous and include but are not limited to: roll-to-roll processing allows for decreased production time, more rapid production and simplified methods lead to cost savings and decreased labor expenses, continuous casting to produce more uniform electrodes, casting processes are capable of yielding thinner electrodes that can save space in the final battery design and reduce the amount of excess active material in batteries, thus increasing practical energy and power density, and there is not a restriction to cylindrical form factors so different battery shapes and designs can be enabled and produced or manufactured. |
| Novelty: The method involves dissolving a salt binder into a solvent forming a salt binder solution, adding an active material to the salt binder solution, mixing the salt binder solution and the active material mixture to form a slurry, then casting the slurry onto a substrate, and removing the solvent from the cast film to bring the salt binder out of solution to bind the film. |
| Filed: 1/10/2018 |
| Application Number: US15866935A |
| Tech ID: SD 14159.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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