Distributed Storage

An international group of scientists has developed a comprehensive method to track the microscopic processes at work in lithium batteries. Employing a ‘virtual unrolling’ model developed for ancient manuscripts too sensitive to be opened, the group peeked inside the layers of a commercial battery to gain a better understanding of the processes at work and the degradation mechanisms affecting them. Their findings, the group says, could provide a benchmark for battery characterization.

pv magazine has spoken to José Antonio Unanue, director of the battery energy storage system business at Ingeteam, the equipment integrator and manufacturer of the first grid-connected battery storage system in Spain, which electric utility Iberdrola launched in Caravaca de la Cruz, Murcia, at the end of November.

WoodMac analysts say the amount of new battery manufacturing capacity added in the nation this year could fall by as much as 10% because of the outbreak. With Tesla’s Shanghai gigafactory affected by the extended new-year-holiday shutdown, the analyst warned of potential supply shortages for Australia and the U.S. and U.K.

With electric vehicles making up only 3% of the global car market last year, analyst WoodMac says battery packs need to be cheaper and lighter and range anxiety must be addressed to change the habits of drivers.

China, Hong Kong and Vietnam are the top three nations exporting batteries to India. Chinese imports were worth $773 million in the last fiscal year with Hong Kong shipping $267 million worth and Vietnam $114 million, according to the Ministry of Commerce.

Researchers have found strong anodic activity in disordered particles of magnesium chromium oxide. Unlike conventional, ordered nanocrystals, the disordered particles reportedly achieved reversible magnesium extraction and insertion.

Batteries, and the raw materials that make them, are a frequent target of public criticism. The high water consumption required for lithium extraction is speeding up desertification around the salt lakes of Latin America’s “lithium triangle”, for example. The mining debate highlights general problems with the extraction of raw materials including copper, crude oil and lithium but international companies can still influence extraction methods – and there are plenty of different approaches.

Storage system providers in Europe have told pv magazine output has thus far been unaffected by the virus outbreak in China. Manufacturers are aware, however, the situation may change rapidly if self-isolation measures taken by the authorities continue.

Australian peer-to-peer (P2P) energy trading pioneer Power Ledger has won a lucrative contract with Alperia SpA, one of Italy’s largest renewable electricity utilities.

The luxury car maker is betting on the timely development of market-ready solid-state batteries. Mercedes will work with the Canadian research institute to quickly integrate new technology into field applications to cut development cycle times.