Energy storage technologies for small satellite applications

What are small satellites used for?

Small satellites, weighting between 100 and 200 kg, have witnessed increasing use for a variety of space applications including remote sensing constellations and technology demonstrations.

Why are thermal storage devices important for high-power smallsats?

Thermal storage devices are an important consideration for high-power SmallSats, because they offer the ability to more effectively manage the heat loads involved, especially for Low Earth orbits and low duty cycle components.

Do spacecraft batteries have a high energy density?

High energy density is a primary concern for spacecraft energy storage design, and these batteries have been sufficient for most applications. However, constraints on the allowable on-board battery size have limited peak power performance such that the maximum power supply capability of small satellites currently ranges between only 70 and 200 W.

Can a lithium-ion battery be used on a satellite?

Since the successful first in-orbit demonstration of a lithium-ion battery on the Proba-1 satellite launched in 2001, the mass and volume of re-chargeable chemical batteries of a given energy storage capability have been reduced to around 40% of their previous values, for use on-board both small and large satellites , , .

Are high-power small satellites a viable option?

High-power Small Satellites have the potential to provide new and advanced capabilities to a wide-variety of missions; however, significant design challenges are currently preventing high-power SmallSats from being readily utilized. Of these, thermal management of high-heat loads is most significant.

Do high-power small satellites have a thermal management problem?

High-power Small Satellites have the potential to provide new and advanced capabilities; however, significant challenges prevent wide-spread use. Of these, thermal management of high-heat loads is significant.