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In Context
- The QuantumScape Corp, backed by Volkswagen AG is working on developing “Solid-State Batteries” with an aim to commercialise it by 2025.
About Solid-state Batteries
- These batteries use solid electrodes and a solid electrolyte, instead of the liquid or polymer gel electrolytes found in lithium-ion or lithium polymer batteries.
- Solid-state batteries can provide solutions for many problems of liquid Li-ion batteries, such as flammability, limited voltage, unstable solid-electrolyte interphase formation, poor cycling performance and strength.
- In the charging & discharging cycle, ions transfer to and fro between the anode (negative electrode generally made of graphite) and cathode (positive electrode made of lithium).
Advantages of the solid-state battery technology
- Higher cell energy density (by eliminating the carbon anode)
- Lower charge time (by eliminating the need to have lithium diffuse into the carbon particles in conventional lithium-ion cells)
- Ability to undertake more charging cycles and longer life.
- Improved safety and Lower cost.
- Increase capacity of EV batteries
India’s Battery Push (Steps Taken)
- Work is on the project of around 4,000 MWh of grid-scale battery storage systems that control the country’s power grid.
- The Indian government launched the ‘National Mission on Transformative Mobility and Battery Storage.
- Proposal in setting up manufacturing facilities for Advanced Chemistry Cell (ACC) battery storage in India
- RELIANCE INDUSTRIES LTD has announced plans to set up an Energy Storage Giga factory.
- State-owned NTPC Ltd has floated a global tender for a grid-scale battery storage project.
Source: IE
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