Highlights

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.

Panellists including a government representative and a member of the chief policy thinktank used by Narendra Modi agreed coal will continue as the staple source of Indian power into the mid century and technology should be employed to ‘clean’ it.

Construction of the $2.87 billion factory is scheduled to start in March and manufacturing activity should be launched in 2021.

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.

Researchers have integrated A3B5 semiconductors on a silicon substrate in a prototype solar cell and claim the technique could enable the production of III-V solar cells with conversion efficiencies of around 40%.

The South African project is reportedly experiencing serious problems due to premature module degradation. Claims of extensive backsheet failure have emerged and it is said widespread module replacement will be required. The modules used in the project were supplied by Chinese manufacturer BYD and South African producer Artsolar.

MIT scientists have developed a solar desalinator which transports heat from the sun through a ten-stage process of evaporation and condensation. The group estimates a $100 device employing their innovation could provide the daily drinking water needs of a family.

Researchers from Switzerland’s École Polytechnique Fédérale de Lausanne have used molybdenum oxide as the hole-selective contact in an heterojuction silicon cell. The scientists claim the compound can compete with traditional contacts despite a lower level of optimization.

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.