Battery Energy Storage

What is the primary reason for needing large-scale energy storage in renewable energy systems?

• To reduce electricity costs

• To address the variability of renewable energy sources

• To replace fossil fuel power plants

• To increase the energy density of power grids

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What is a key advantage of lithium-ion batteries for grid-scale energy storage?

• Infinite lifespan

• High energy density

• Simple system design

• Low manufacturing costs for raw materials

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What does "thermal runaway" refer to in lithium-ion batteries?

• Batteries freezing at low temperatures

• A chain reaction of overheating that can lead to fires

• Slow charging rates due to poor thermal management

• Excessive energy loss during discharges

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Which of the following is NOT a limitation of lithium-ion batteries?

• Susceptibility to degradation

• High energy density

• Safety concerns

• Dependence on limited mineral resources

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NGSS.HS-ETS1-3

How do flow batteries store energy?

• In solid electrodes

• In liquid electrolytes in external tanks

• In compressed air systems

• In superconducting coils

What makes flow batteries safer than lithium-ion batteries?

• Higher energy density

• Non-flammable liquid electrolytes

• Simpler system designs

• Use of solid-state technology

Which of the following is a major limitation of flow batteries?

• Short cycle life

• High flammability

• Low energy density

• Rapid degradation under high temperatures

What material is commonly used in vanadium redox flow batteries?

• Lithium

• Vanadium

• Zinc

• Cobalt

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Which application is best suited for lithium-ion batteries in grid stabilization?

• Long-duration energy storage

• Frequency regulation and short-term peak shaving

• Seasonal energy storage

• Powering entire cities during blackouts

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What is a major advantage of flow batteries over lithium-ion batteries?

• They are cheaper to manufacture.

• They have minimal degradation over many cycles.

• They are more compact.

• They can charge and discharge faster.

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