DOW-UAP-D147 — Ultracapacitors for Aerospace Power
This DIA reference report surveys ultracapacitors as high-power energy-storage devices for commercial and military uses. It contrasts their rapid charge/discharge capability and cycle life with lower specific energy than lithium-ion batteries, reviews materials and applications, and frames prospective performance gains as research and engineering goals rather than evidence of a breakthrough aerospace power system.
- File
- Document · Release 06
- Date
- Nov 1, 2010
- Location
- Las Vegas, Nevada
- Extent
- 34 pages
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Probed Assessment
Ultracapacitors provide rapid power and long cycle life but remain lower-energy devices best used with batteries or other primary sources.
Key takeaways
- The summary says ultracapacitors can charge and discharge extremely rapidly and be cycled hundreds of thousands of times.
- The report says ultracapacitors have less than ten percent of lithium-ion batteries’ specific energy.
- The report says ultracapacitors require a power converter to regulate voltage.
- The report identifies high-surface-area carbon electrodes as the basis for high capacitance.
Why it matters
The survey supports hybrid pulsed-power applications while clearly distinguishing ultracapacitors from long-duration primary energy storage.
Corroboration
The released PDF supports the cited methods, calculations, limitations, and conclusions. It does not show that ultracapacitors replace batteries for long-duration primary energy storage.
Open questions
- • How do cycle life and energy density trade off in flight-qualified cells?
- • Which hybrid architectures benefit most from short high-power bursts?
Probed separates this editorial assessment from the source claims below. It summarizes what the released artifact supports; it is not independent verification.
Official Description from War.gov
This document is a Defense Intelligence Reference Document (DIRD), a technical reference format used by the Defense Intelligence Agency (DIA) to capture baseline knowledge on a specific topic for later analytic use. DIRDs are best understood as reference and synthesis products rather than as original research. It is one of 38 DIRDs produced under the Advanced Aerospace Weapon System Applications Program (AAWSAP) between 2009 and 2011. Because AAWSAP’s scope permitted a broad range of supporting topics, not every DIRD in the series directly concerns aerospace systems or future threat assessment. The following summary reflects the DIRD’s scope and framing at the time of writing and should not be read as implying current validation of the concepts discussed. This DIRD surveys ultracapacitors as high-power energy-storage devices and argues that their main value lies in extremely rapid charge and discharge, very long cycle life, and usefulness in systems that need short bursts of power rather than sustained energy delivery. The report explains how ultracapacitors differ from batteries, reviews the materials and cell designs that determine their performance, and emphasizes that they are especially useful for power stabilization, backup power, load leveling, regenerative braking, and other applications where fast energy transfer matters more than total stored energy. It also notes their drawbacks, including lower energy density, self-discharge, and voltage-management requirements that limit their usefulness as stand-alone replacements for batteries in many applications. The document presents ultracapacitors as a maturing and increasingly important technology whose most credible aerospace and military uses lie in pulsed-power, missile and munitions systems, electric propulsion support, and other hybrid power architectures rather than in long-duration primary energy storage.
Preserved verbatim as source metadata. This wording is separate from Probed’s file-specific description and assessment.
File Context
Related entities
Tracker findings
The summary says ultracapacitors can charge and discharge extremely rapidly and be cycled
The summary says ultracapacitors can charge and discharge extremely rapidly and be cycled hundreds of thousands of times.
Ultracapacitors require a power converter to regulate voltage
The report says ultracapacitors require a power converter to regulate voltage.
High-surface-area carbon electrodes as the basis for high capacitance
The report identifies high-surface-area carbon electrodes as the basis for high capacitance.
Preliminary MCap test results as tests, not fielded performance evidence
The report presents preliminary MCap test results as tests, not fielded performance evidence.
High power and cycle life as drivers of ultracapacitors’ role in energy-management schemes
The conclusion identifies high power and cycle life as drivers of ultracapacitors’ role in energy-management schemes.
The summary cites aerospace use in munitions fusing and missile power load leveling
The summary cites aerospace use in munitions fusing and missile power load leveling.
Release provenance
- Release
- Release 06
- Official ID
- release-06-file-051-dow-uap-d147-aawsap-dird-ultracapacitors-as-energy-and-power-storage-devices-november-2010
- Cleared
- Sep 18, 2026
Source Claims
Claims are attributed to the released source and remain distinct from Probed’s assessment and tracker findings.
The document is a Defense Intelligence Reference Document on ultracapacitors as energy and power storage devices.
Ultracapacitors as Energy and Power Storage Devices for Commercial and Military Applications
The report identifies itself as part of the DIA AAWSA program’s 2010 reference-document series.
one of a series of advanced technology reports produced in FY 2010 under the Defense Intelligence Agency, Defense Warning Office’s Advanced Aerospace Weapons System Applications
The contents place the report’s treatment across concept overview, materials technology, and applications.
Chapter 2: Materials Technology
The summary says ultracapacitors can charge and discharge extremely rapidly and be cycled hundreds of thousands of times.
capable of extremely rapid charge and discharge rates with the ability to be cycled hundreds of thousands of times
The report says ultracapacitors have less than ten percent of lithium-ion batteries’ specific energy.
they have less than 10% of the specific energy (Wh/kg)
The report says ultracapacitors require a power converter to regulate voltage.
require a power converter to regulate their voltage
The report identifies high-surface-area carbon electrodes as the basis for high capacitance.
The high capacitance is achieved by the enormously high surface area of the carbon electrodes
The materials discussion describes pseudocapacitors as combining a carbon electrode with a battery-like electrode.
Pseudocapacitor systems use a combination of a carbon electrode and a battery-like electrode
The report presents preliminary MCap test results as tests, not fielded performance evidence.
Figure 13. Preliminary MCap Test Results
The conclusion identifies high power and cycle life as drivers of ultracapacitors’ role in energy-management schemes.
The virtually unlimited cycle life combined with high power capabilities has made them an integral component to many energy-management schemes
The report says new materials and cell designs are expected to improve capacitance, voltage, and energy density.
New materials and cell designs will produce increased capacitance and higher voltages
The summary cites aerospace use in munitions fusing and missile power load leveling.
their use in aerospace has been for munitions fusing and missile power load leveling
Source Material & Evidence
Research Map
Lines appear only when two entities share a row-level source claim or dated timeline event. Unconnected nodes remain visible without implying a relationship.