Applied Thermoelectric Solutions LLC
VoltaTherm® Battery Thermal Management
A Compact Solid-State Battery Thermal Management System (BTMS) for Battery Electric Vehicles
Expected VoltaTherm® Benefits
Benefits and Features
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Improved Battery Life
VoltaTherm® enables true individual cell temperature control, allowing certain cells to be heated while others are cooled simultaneously to help minimize temperature variations between cells. This differs from an earlier bus-bar-mounted thermoelectric battery thermal management patent, which provided localized cell-pair heating and cooling. -
Increased EV Range
VoltaTherm® makes it possible to heat batteries efficiently, achieving a COP greater than 1, which is not possible with traditional resistive heaters limited to a COP of 1 -
Increased Reliability
VoltaTherm® Solid-State thermoelectric thermal management enables enhanced reliability due to the absence of moving parts. -
Environmentally Responsible
VoltaTherm® does not require any ozone-depleting refrigerants that may leak or need to be replenished through maintenance. -
Decreased Cost
VoltaTherm® utilizes semiconductor technology to provide both heating and cooling functions within a single device, thereby simplifying the overall system. It is a self-contained system that necessitates only a few easily assembled parts. -
Reduced Weight and Packaging Space
VoltaTherm® offers a simplified packaging solution as it eliminates the need for intricate refrigerant lines or a compressor. It obtains power directly from the battery, eliminating any inverter loss or the requirement for heavy copper cables. Additionally, VoltaTherm® is designed to be highly compact and integrated for optimal convenience.
VoltaTherm® builds on earlier work in thermoelectric battery cooling, but with a more compact, integrated architecture and true individual cell temperature control. For background on an earlier graphite-assisted thermoelectric approach, see this graphite thermoelectric battery cooling patent.
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