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Hydride‐Based Solid Oxide Fuel Cell–Battery Hybrid Electrochemical System
Author(s) -
Guan Xiaofei,
Jiang Jun,
Lattimer Judith,
Tsuchiya Masaru,
Friend Cynthia M.,
Ramanathan Shriram
Publication year - 2017
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.201600406
Subject(s) - renewable energy , battery (electricity) , hydrogen fuel , energy storage , regenerative fuel cell , solid oxide fuel cell , electrochemical energy conversion , hydrogen storage , grid energy storage , automotive engineering , anode , distributed generation , electricity , process engineering , photovoltaics , electrical engineering , fuel cells , photovoltaic system , engineering , hydrogen , electrochemistry , power (physics) , chemistry , chemical engineering , electrode , physics , organic chemistry , quantum mechanics
The deployment of renewable energy technologies, such as solar photovoltaics and wind turbines, poses challenges in terms of electricity grid stability due to the intermittent nature of such energy sources, which creates a need for innovative storage solutions. We demonstrate a metal hydride‐based hybrid electrochemical system that enables a solid‐oxide fuel cell to operate in both fuel cell mode and battery mode, allowing for un‐interrupted electricity generation. In the fuel cell mode, the device acts as a conventional fuel cell and converts the chemical energy stored in fuels into electrical energy. In the battery mode, the metal hydride near the anode releases hydrogen and quickly responds to fuel supply interruption or power demand surges. The concept demonstrated here is a promising way to provide a robust and economical solution for balancing power supply and demand for the electrical grid of the future.