A Battery Thermal Testing System and Apparatus

The electrochemical cell thermal testing fixture of any preceding claim further comprising means configured to mechanically bias the cell to contact the temperature-controlled plate.

The electrochemical cell testing apparatus of any preceding claim wherein the negative contact is mechanically biased to engage with the sidewall surface of the cylindrical cell.

The electrochemical cell thermal testing fixture of any preceding claim further comprising a processor and at least one temperature sensor configured to sense the temperature of the temperature-controlled plate, wherein the processor is configured to adjust the temperature of the temperature-controlled plate in response to an indication of the temperature sensed by the temperature sensor.

The electrochemical cell thermal testing fixture of any preceding claim further comprising at least one temperature sensor configured to sense the temperature of the cell.

The electrochemical cell thermal testing fixture of claim 7 wherein the temperature sensor configured to sense the temperature of the cell comprises the cell temperature testing device of claims 23 to 25.

The electrochemical cell thermal testing fixture of any preceding claim wherein the temperature-controlled plate is configured to contact at least a portion of a circular plane surface of the cylindrical cell.

The electrochemical cell thermal testing fixture of any preceding claim wherein the temperature-controlled plate further comprises a receiving portion configured to receive and contact at least a portion of the sidewall surface of the cylindrical cell.

An electrochemical cell electrical connection apparatus for testing cylindrical battery cells, comprising:

• a positive contact, configured to contact a positive terminal of a cylindrical cell for connection to a battery cycler;
• and
• a negative contact, configured to contact a negative sidewall surface of the cylindrical cell for connection to a battery cycler.

A battery thermal testing system comprising:

• a plurality of electrochemical cell testing fixtures, each electrochemical cell testing fixture configured to receive a cell, wherein each cell testing fixture comprises a temperature-controlled plate configured to contact at least one surface of the cell, wherein the temperature-controlled plate is configured to heat and/or cool the cell by conduction;
• and
• a coolant system, wherein the coolant system is configured to cool each of the plurality of electrochemical cell testing fixtures by cooling each temperature-controlled plate.