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New MIT metal-mesh membrane could solve longstanding problems with liquid metal displacement batteries; inexpensive grid power storage

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These paper-thin membranes made the batteries too easily damaged in real-world operating conditions, so apart from a few specialized industrial applications, the system has never been widely implemented. Sadoway (2018). Nature Energy doi: 10.1038/s41560-017-0072-1.

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Freudenberg secures majority interest in Li-ion battery maker XALT Energy; full acquisition coming

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In March 2018, Freudenberg announced it had acquired a 31% ownership stake in XALT Energy through a multi-million dollar investment in its operations. In 2018, Freudenberg agreed to work with a leading provider of electrical power distribution and automation for the marine industry to explore battery solutions for its applications.

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Rolls-Royce takes majority holding in power storage specialist Qinous; storage for microgrid activities

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stake in the former start-up back in October 2018. The company is involved in battery storage systems and associated control systems, and has already implemented storage solutions around the world. As a young, start-up-style company, Qinous brings expertise that is an ideal complement to Rolls-Royce's industrial credentials.