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storage system

Massless battery for applications in vehicle-integrated solar

Swedish scientists have developed a structural battery that purportedly offers “massless” storage, as its weight vanishes when it becomes part of the load-bearing structure. The device has an energy density of 24 Wh/kg and is designed for easy integration into solar-powered vehicles.

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A stable sodium battery, without the anode

Scientists in the U.S. demonstrated a sodium-ion battery with no anode, that retained 99.93% of its initial capacity per cycle. Their design was able to overcome many of the stability issues associated with using ‘pure’ alkali metals in batteries, thanks to carefully minimizing water content in the liquid electrolyte.

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Storing large scale renewables with basalt stones

A Danish consortium is seeking to store electricity from large scale renewable energy plants in the form of thermal energy in big tanks containing crushed, pea-sized stones made of basalt. The first 10 MWh demonstrator is planned to be developed in Denmark and to be powered by a wind facility. Another project is also under development in the United States and is planned to be linked to a solar plant.

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Spain joins the gigafactory race

SEAT and Iberdrola are planning to build an EV battery manufacturing facility in Barcelona with the support of the Spanish government.

European scientists want to develop hybrid vanadium redox flow battery with supercapacitor

European scientists are designing a new type of redox flow storage system aimed at flexibly balancing power grids in the event of critical conditions. Funded by the EU, the research project is being coordinated by the Landshut University of Applied Sciences and runs until 2023.

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India tweaks 100 MW solar-plus-storage tender

The peak DC capacity of the project has been reduced, along with the size of the battery storage element of the facility.

Italy has 170 MW/267 MWh of distributed storage capacity

The country added around 90 MW/100 MWh of new, small-sized storage capacity over the past 18 months. Most of the batteries are in Lombardy, whose administration offers rebates.

How standards can ensure battery safety

There’s no understating the importance of maintaining a safe battery system, and that maintenance will become only more important as battery adoption grows exponentially in the coming years. Fortunately, new standards are being developed alongside existing protocols to make safety management uniform and manageable.

“Capacity deferral is the primary source of storage value”

Big batteries derive most their value from replacing gas peaker plants and averting the installation of excessive amounts of transmission and generation infrastructure. However, batteries cannot replace all gas plants, MIT researchers found. From a holistic economics perspective, there is a certain share of storage that is considered cost-efficient. With battery costs declining, that share is constantly increasing.

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New all-iron redox flow battery for renewables storage

Scientists in the U.S. claim to have demonstrated an inexpensive, long-life, safe and eco-friendly redox flow battery. The device is said offer coulombic efficiency of 97.9% thanks to functional electrolyte additives, pH and elevated temperature.

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