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Generating Electricity with Hydraulically Amplified Self-Healing Electrostatic (HASEL) Transducers

Journal Article · · Energies
DOI:https://doi.org/10.3390/en17236130· OSTI ID:2479944

This study identifies hydraulically amplified self-healing electrostatic (HASEL) transducers as electricity generators, contrary to their conventional role as actuators. HASELs are soft, variable-capacitance transducers inspired by biological muscles which were developed to mimic the flexibility and functionality of natural muscle tissues. This research characterizes HASELs as generators by reversing their energy conversion mechanism—generating electricity through mechanical deformation. The study assesses the practical laboratory performance of HASELs by analytic modeling and experimental evaluation. Outcomes of the study include the following: (i) up to 2.5 mJ per cycle per 50 mm wide HASEL pouch of positive net energy generation in experimental testing—corresponding to an energy density of 2.0 mJ cm-3; (ii) a maximum theoretical energy density of 4.2 mJ cm-3; (iii) the electromechanical characteristics governing efficient conversion; and (iv) design considerations to enhance HASEL generator performance in future applications. This study broadens HASEL’s applicability and utility as a multi-functional transducer for renewable energy and general adaptive electricity generation.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Water Power Technologies Office; USDOE
Grant/Contract Number:
AC36-08GO28308
OSTI ID:
2479944
Alternate ID(s):
OSTI ID: 2496233
Report Number(s):
NREL/JA-5700-91885; MainId:93663; UUID:f39cb301-2055-45aa-8ce2-24d573176c51; MainAdminId:75383
Journal Information:
Energies, Vol. 17, Issue 23; ISSN 1996-1073
Publisher:
MDPICopyright Statement
Country of Publication:
United States
Language:
English

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