Battery structure with internal thermal control

A multiple battery structure assembly, comprising:

• multiple battery structures, each comprising:
• a casing comprising an external tube, an internal tube defining a central hole, a lower cover and an upper cover assembly;
• a jelly roll assembly comprising an anode, a separator and a cathode, the jelly roll assembly being disposed with an electrolyte in an annular space between the external and internal tubes and between the lower cover and the upper cover assembly;
• electrodes electrically coupled to the anode and the cathode and disposed to extend out of the casing;
• and
• insulation disposed to insulate the jelly roll assembly and the electrodes from the casing;
• and
• a thermal control feature communicative with the central hole of each battery structure and configured to control battery structure temperatures proximate to each of the central holes.

A method of assembling a battery structure, the method comprising:

• forming a casing comprising an internal tube defining a central hole;
• disposing a jelly roll assembly in an annular space about the internal tube within the casing;
• filling the casing with an electrolyte;
• electrically coupling electrodes to the jelly roll assembly such that the electrodes extend out of the casing;
• insulating the jelly roll assembly and the electrodes from the casing;
• and
• communicating, with the central hole, a thermal control feature configured to control battery structure temperatures proximate to the central hole.