26 May '11, 6pm

New Lithium rechargeable semi-solid flow cell offers energy densities an order of magnitude greater than previous fl...

Decoupling power components from energy-storage components so that stored energy can be scaled independently of power is a strategy for improving system-level energy density. Redox flow batteries have such a design, in which active materials are stored within external reservoirs and pumped into an ion-exchange/electron-extraction power stack. As the system increases in capacity, its energy density may asymptotically approach that of the redox active solutions. Aqueous-chemistry flow batteries are of much current interest for stationary applications due to their scalability, relative safety, and potentially low cost. However, they currently use low energy density chemistries limited by electrolysis to ≈1.5 V cell voltage and have low ion concentrations (typically 1.2 m ), yielding ≈40 Wh L-1 energy density for the fluids alone. Furthermore, the large fluid volumes that must...

Full article: http://www.greencarcongress.com/2011/05/ssfc-20110526.html

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New GE combined cycle power plant delivers both...

greencarcongress.com 26 May '11, 9am

New GE combined cycle power plant delivers both flexibility and efficiency; enables greater use of wind, solar and natural...

Stealthy Small-Scale Storage Startups: What's the right business case for energy storage? Where will the value...

Stealthy Small-Scale Storage Startups: What's t...

greentechmedia.com 25 May '11, 5pm

What's the right business case for energy storage ? Where will the value of energy storage on the grid present itself? Wha...