Isotope battery stack

The isotope battery stack with cooling holes and refrigerant supply system addresses heat dissipation and cooling challenges, enhancing safety and efficiency in nuclear battery units.

WO2026127670A1 Publication Date: 2026-06-18LG ENERGY SOLUTION LTD

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
LG ENERGY SOLUTION LTD
Filing Date
2025-12-11
Publication Date
2026-06-18

AI Technical Summary

Technical Problem

Nuclear battery units utilizing radioactive isotopes face challenges in safety, efficiency, and stability, particularly in terms of heat dissipation and cooling performance.

Method used

A stack of isotope cells with cooling holes and a refrigerant supply system, featuring an uneven surface on the cooling hole sidewalls and a refrigerant circulation mechanism, enhances heat dissipation and cooling efficiency.

🎯Benefits of technology

The solution provides excellent heat dissipation and cooling performance, stabilizing the operation of nuclear battery units and improving their safety and efficiency.

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Abstract

Provided is an isotope battery stack comprising: a plurality of isotope battery units stacked in a first direction; at least one cooling hole passing through the plurality of isotope battery units; and a refrigerant supply unit capable of supplying a refrigerant to the cooling hole. The isotope battery stack according to embodiments of the present invention has excellent heat dissipation and cooling performance.
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