The #Vanadium flow battery is seen as one of the most advanced energy storage devices from the perspective of its integration with renewable energy sources. The battery’s operating principle consists of converting electrical energy into the energy of chemical reactions between vanadium salts. The flow battery differs from classical batteries in that it uses both the electrochemical cell and the liquid electrolyte stored in separate tanks and flowing through the cell when the battery is in operation. Thus, the battery’s capacity and power can be scaled independently, which gives the designers more flexibility in creating real power installations and enables them to design new high-power and high-capacity storage devices. Another advantage of vanadium flow batteries is that they have a much longer life compared to their conventional counterparts. Currently, vanadium flow batteries are used in combination with solar panels and wind power generators. The new model will help detect and monitor failures and expand the scope of application of the battery.
#BHP has said it prefers to focus on its key commodities, including #Copper, #Iron ore and oil, seeking a buyer for its assets that produce battery-grade #Nickel and steering clear of #Lithium and #Cobalt.
While the market to supply nickel for EVs may be worth about $4 billion by 2030, that’s still way off the $100 billion annual global trade in iron ore — BHP’s core business.
Researchers have found a revolutionary approach that uses cobalt and methanol to produce an epilepsy drug that previously required rhodium and dichloromethane, a toxic solvent. Their new reaction works faster and more cheaply, and it likely has a much smaller environmental impact, said Chirik, the Edwards S. Sanford Professor of Chemistry.
Polymer-based membranes for gas separation have a trade-off between high gas permeability and high gas selectivity, the so-called Robeson upper bound. By combining individual graphene oxide sheets with polymer spacers, in a sandwich style structure, Graphene Flagship researchers have been able to overcome such limit, separating gas quickly and efficiently.
Focusing on producing a gas separation device useful for carbon capture and storage, the researchers devised a protocol to separate CO2from H2. Hydrogen production, both from natural gas or in gasification of liquid or solid fuels, is often accompanied by the formation of a significant amount of CO2, which needs to be removed before the gas is used. Efficient separation of the CO2has greater potential for capture of this greenhouse gas.
Read more at: https://phys.org/news/2018-06-graphene-gas.html#jCp
#Brazil’s mining giant #Vale has inked a pioneering agreement to sell future production of cobalt from its Canadian Voisey’s Bay mine, located in the Atlantic province of Newfoundland and Labrador, as speculation rises over a shortage of the metal needed to make batteries and which has been pushing companies to secure long-term supply.
By the looks of it, every car of the future will be equipped with a powerful and cheap battery made in, and more importantly by, China.
Nickel-Manganese-Cobalt (NMC) batteries favoured by most vehicle makers contain around 20% cobalt.
Musk said on Wednesday the cobalt content of its NCA cathode chemistry “is already lower than next-generation cathodes that will be made by other cell producers with a nickel-manganese-cobalt ratio of 8:1:1″.