Development of Wide Temperature Range Electrolytes for Start-Stop Vehicle Applications

摘要

1 6000 batteries were made and tested within a year, nearly 40% reduction on both HT impedance growth and LT impedance achieved! 2 New solvents and additives are both required for wide temperature range performance 3 Bulk electrolyte properties play a bigger role at low temperature for LTO o SEI properties are important to both graphite and LTO 4 Wildcat formulations have large improvements on LT Power (37%) (Lower Area Specific Impedance @ -25 ℃) and HT Stability (35%) (less impedance growth after 60 ℃ Storage) 5 High Throughput cell results matched almost perfectly with large format cell results.