Product Overview

The Mindway high voltage ultra-high power thermal battery pack  is designed for high-power defense and aerospace systems that demand instant, massive energy delivery. Unlike conventional batteries, this high voltage thermal battery pack remains inert until activated, delivering instantaneous, ultra-high power for missile guidance. Delivering 750V high voltage and 500A peak current, our ultra-high power thermal battery provides reliable, one-shot energy when and where it's needed most.

Core Advantages

• Ultra-High Power Density: Up to 15kW/kg for peak power demand.

• High Voltage Output: 750V nominal voltage for high-power systems.

•  Activation time:(60ms-2 seconds)  Fast ignition to meet instant power needs.

• Advanced Insulation Protection: Multi-layer insulation ensures safety under high voltage and current.

• Hermetically sealed design – 10+ year shelf life without maintenance

• Extreme temperature operation – functions from -50°C to +400°C during activation

• Custom voltage/current/duration – tailored to your specific mission profile

• Safe one-shot architecture – inert solid electrolyte until firing

Typical  Application 

Satisfies requirements of underwater weapon systems for rapid activation and high-speed operation with large power demand.

Thermal Safety

Advanced thermal insulation ensures internal cell temperature maintenance while keeping external case temperatures within safe limits for surrounding avionics，Specially customized for underwater systems.

Customizable parameter range for Mindway's  Thermal  Battery 

• Operating Voltage: 750 V (Unit cell: 1.9 V – 2.1 V)

• Unit Cell Current Output: 10 mA – 360 A

• Combined Battery Current Output: 500 A

• Power Density: 15 kW/kg

• Energy Density: 120 Wh/kg  

• Activation Time: 60 ms – 2 s

• Operating Duration: 5,000 s

• Storage Life: 27 years

• Operating Temperature Range: –55°C to +400°C

• Activation Methods: Electric ignition, mechanical ignition (overload activation)

• Diameter: Ø 13 mm – Ø 140 mm

• Height: 20 mm – 500 mm

Note: This represents typical performance, not maximum capability

Mindway provides customized thermal battery solutions optimized for specific voltage profiles and mechanical constraints. Contact our engineering team for technical consultation.

Also available in  Fast Activation Thermal Battery   

Need even smaller? See our   Micro Thermal Battery

Thermal battery principle

A thermal battery is a single-use, thermally activated reserve battery that employs electrical signals, mechanical force, or overload activation to ignite its internal heating system. This process melts the solid molten salt electrolyte between the cathode and anode into a conductive ionic state, thereby enabling the battery to deliver electrical power.