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Devices for Stationary Electrical Energy Storage Applications

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Devices for Stationary Electrical Energy Storage Applications ( devices-stationary-electrical-energy-storage-applications )

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INNOVATIVE DESIGNS of storage technologies can drive the development of devices that can be affordably manufactured at grid scale. Design simplifications and designs for efficient manufacturing can enable storage systems to be produced at lower costs via automated manufacturing with necessary quality control processes. Effective system design also ensures that control systems and power electronics enable efficient, secure, and reliable interoperability with the electric grid. The success of these activities and initiatives will require significant support from DOE. To help DOE better focus its resources over time, Figure 1 divides the solutions for each storage technology by the time frame in which they will impact the market: near term (less than 5 years), mid term (5–10 years), and long term (10–20 years). Committing to these activities will allow DOE, technology developers, and the electric power industry to pursue a coherent technology development and demonstration strategy for energy storage technologies in grid-scale applications. FIGURE 1: PRIORITIZED ACTIVITIES TO ADVANCE ENERGY STORAGE TECHNOLOGIES NEAR TERM (< 5 years) MID TERM (5–10 years) LONG TERM (10–20 years) Conduct DOE-funded validation tests of system lifetime, ramp rates, etc. Understand poor materials utilization through diagnostics and modeling Develop high-power/energy carbon electrode for lead-carbon battery Develop models for ion transport through solids (inorganic solids, polymers) Develop new intercalation compounds with low cycling strain and fatigue; aim for 10,000 cycles at 80% depth of discharge Conduct experiments to develop a quantitative understanding of catastrophic cell failure and degradation Design and fabricate novel electrode architectures to include electrolyte access to redox active material and short ion and electron diffusion paths (e.g., non-planar geometries) Develop a highly conductive, inorganic, solid-state conductor for solid-state Li-ion batteries Develop robust planar electrolytes to reduce stack size and resistance Decrease operating temperature, preferably to ambient temperature Develop a true sodium-air battery that provides the highest value in almost any category of performance Implement pilot-scale testing of battery systems to develop performance parameters for grid applications Use surface-science techniques to identify species on sodium-ion anodes and cathodes 2 ADVANCED MATERIALS AND DEVICES FOR STATIONARY ELECTRICAL ENERGY STORAGE APPLICATIONS SODIUM-BASED ADVANCED LEAD-ACID AND BATTERIES LITHIUM-ION BATTERIES LEAD-CARBON BATTERIES

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Devices for Stationary Electrical Energy Storage Applications

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