Regional Development of Solid-State Batteries

Regional Development of Solid-State Batteries

Regional Development of Solid-State Batteries Analyzed by IDTechEx Research

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Companies Are Betting On Solid-State Batteries

The rapid growth of the electric vehicle market has driven the development, manufacture and sales of batteries, especially lithium-ion batteries. In the meantime, a number of companies are betting on the next big energy storage technologies - solid-state batteries being one of them.

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The first application of solid-state electrolytes was in the 70's as primary batteries for pacemakers, where a sheet of Li metal is placed in contact with solid iodine. The two materials behave like a short-circuited cell and their reaction leads to the formation of a lithium iodide (LiI) layer at their interface. After the LiI layer has formed, a very small, constant current can still flow from the lithium anode to the iodine cathode for several years.

Fast forward to 2011, researchers from Toyota and the Tokyo Institute of Technology have claimed the discovery of a sulphide-base material that has the same ionic conductivity of a liquid electrolyte, something unthinkable up to a decade ago. Five years later, they were able to double that value, thus making solid-state electrolytes appealing also for high power applications and fast charging. This and other innovations have fuelled research and investments into new categories of materials that can triple the energy densities of current Li-ion batteries.

In 2015, Volkswagen invested in QuantumScape, Dyson acquired Sakti3, Bosch acquired SEEO and Johnson Battery Technologies sold its solid-state batteries to BP. Although in 2017 Bosch gave up SEEO and was selling the company, and Dyson abandoned the technologies of Sakti3, the interests in solid-state batteries never vanished. Ford, Samsung and Hyundai invested Solid Power. The latter also partnered with BMW. Renault, Mitsubishi and Nissan invested in Ionic Materials. Additionally, in 2020 there are the newly developed solid-state batteries based on argyrodite electrolyte by Samsung, and a further $200 million investment by Volkswagen on QuantumScape. Besides the companies just mentioned, Honda, Fisker, Panasonic, CATL are also involved in this game.

Lithium-Ion Battery Manufacturing

Lithium-ion battery manufacturing has been dominated by East Asia, with Japan, China and South Korea playing a significant role. US and European countries are competing in the race, shifting the added values away from East Asia and building battery manufacturing close to the application market. Solid-state batteries can provide an opportunity to reshuffle the supply chain with the new active materials, components, manufacturing methods and know-how.

Solid-State Batteries

Source: IDTechEx Research report: "Solid-State and Polymer Batteries 2020-2030: Technology, Patents, Forecasts, Players"

Solid-state batteries have had strategic importance in multiple countries and regions. For instance, Germany has earmarked 1 billion Euros to support a consortium looking to produce electric car battery cells and plans to fund a research facility to develop next-generation solid-state batteries. In the UK, a 30-month collaborative project "PowerDrive Line" will develop a lithium-based solid-state battery for EVs and PHEVs, and establish a pre-pilot line for this solid-state battery cell technology. From May 2018, the Japanese government has created a new research entity known as the Consortium for Lithium-Ion Battery Technology and Evaluation Center (Libtec) to push forward with research into solid-state batteries. In South Korea, the 3 largest battery manufacturers SK Innovation, LG Chem, and Samsung SDI promote joint research on next-generation battery fields including solid-state batteries. US solid-state battery companies have attracted investment from Asian and European battery vendors, carmakers, and venture capitals.

The interests are heavily driven by the electric vehicle market and regional convenience is an important consideration for the next stage of commercialization, especially based on the current situation with COVID-19 affecting consumers' purchasing decisions, lifestyle and influencing globalization. This will lead to further consolidation and partnerships and it is highly likely that new solid-state battery manufacturing sites are located near the electric vehicle application market. While start-ups far away from the application markets tend to license their technologies, rather than building manufacturing sites locally.

The global interests in solid-state batteries have been summarised in IDTechEx's report "Solid-State and Polymer Batteries 2020-2030: Technology, Patents, Forecasts, Players". For further understanding of the markets, players, technologies, opportunities and challenges, please refer to the report for more information.

Jacob Wolinsky is the founder of, a popular value investing and hedge fund focused investment website. Jacob worked as an equity analyst first at a micro-cap focused private equity firm, followed by a stint at a smid cap focused research shop. Jacob lives with his wife and four kids in Passaic NJ. - Email: jacob(at) - Twitter username: JacobWolinsky - Full Disclosure: I do not purchase any equities anymore to avoid even the appearance of a conflict of interest and because at times I may receive grey areas of insider information. I have a few existing holdings from years ago, but I have sold off most of the equities and now only purchase mutual funds and some ETFs. I also own a few grams of Gold and Silver
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