Solid-state Battery: A Game-changer?


Electrical vehicles will be in demand for the future. That means its power source- battery must be efficient enough to provide maximum range and lesser time to recharge. Well-known automakers like Toyota, Tesla, Volkswagen, BMW, etc. are defining new routes to make progress in this segment. Future demands better technology in battery's power capacity and life cycle.

According to the reports published by NikkeiAsia in Dec-2020, World's largest automobile manufacturer- Toyota has planned to release the functional prototype EV (electrical vehicle) containing a solid-state battery in 2021. It promises to provide a 500 km range in a single charge and a rapid full recharge in just 10 minutes. This solid-state battery will replace a conventional Lithium-ion battery without sacrificing interior space even in the most compact vehicle. The brand has made over 1000 patents, which is the maximum for solid-state batteries in the EV segment.


Following the announcement made by Toyota, QuantumScape -a start-up founded in 2010 backed by Bill Gates and Volkswagen, CEO Jagdeep Singh claims that the company has developed a solid-state battery using Lithium metal as an anode. It retains 80% of its capacity, after 800 charge cycles that means they last a lot longer than Li-ion battery. QuantumScape design is an ‘anode-free’ design in a discharged state and the anode forms on site after the first charge. The lithium metal anode is more energy-dense than conventional anodes, allowing the battery to have more energy density. The Company is using a ceramic separator material instead of polymer separated used in conventional Li-ion battery which is capable of meeting the key requirements of high conductivity, stability to lithium metal, resistance to dendrite formation, and low interfacial impedance. The ceramic used is non-combustible, much safer than conventional polymer separators, which are hydrocarbons and so can burn. During the development process QS has created over 200 patents and applications to protect the unique approach.

Source: Quantumscape

The main challenges that any EV battery faces are rapid charging, life cycle, operations across the entire automotive temperature range, minimum decomposition of lithium at the anode, etc. QS claims that their SSB has more energy density after replacing carbon anode with an 'anode free' design, approximately 90 % battery capacity even after 1000 charge-recharge cycles, fast charge (0 to 80 %) in less than 15 minutes, and available at a lower cost by eliminating anode interface and manufacturing cost.

Volkswagen’s joint venture with QuantumScape was quick to declare that it too will have a production-ready solid-state battery by 2025. Nissan Motors also plans to develop solid-state batteries, ready for deployment by 2028. Chinese group Qing Tao (Kunshan) Energy Development Co. Ltd will spend over 15 million dollars into the Research and Development of SSB. 

Source: Quantumscape/Youtube

What is the future of this technology in the Indian EV market?

The Indian government is planning to shut down fossil fuel vehicles by 2030. So there will be a widespread of this technology in near future. With poor infrastructure and the requirement of charging stations, the challenge is huge to adopt this technology. This battery rather solves the issue of range and quick charging time will declutter the traffic that builds up charging stations.  If they are as effective as they claimed, it will put an end to fossil-fuel vehicles. At present most automotive brands will put an end to the production of fossil-fuel-powered cars in the next five-six years, which means EVs will be available for sale in a large number in near future.


  1. True... SSB will the change the future....

  2. Sir EV vehicle is a good option but in 2030 we need a very high production of electricity in world and one of the resource of electricity is power plants all over the world But according to WEO (World environment Organization) America produce three times as much pollution as cars in 2007 about 2.56 billion ton pollutants which directly effect to Global Warming and this report is in 2007 and now it's double than how we can solve this problem???.This will same as now

    1. Fuel means carbon and carbon means emission. Fuel powered vehicles will come an end in near future. The world will have to accept public transport system in form of metros and subways. Private vehicles will sooner get converted into EVs and hybrids. To power the vehicle, you must see how Tesla's battery system works. Even you must have seen electric two wheelers. Indian manufacturer TATA motors have established around 300 power charging stations across 40 cities of India including Ahmedabad. In short, the future is electric.

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