South Korea Solid-State Battery Market Size and Share - Outlook Report, Forecast Trends and Growth Analysis (2026-2035)

South Korea Solid-State Battery Market Overview

South Korea is rapidly becoming an innovation center for the solid-state battery industry, powered by deliberate collaborations among automotive original equipment manufacturers (OEMs) and battery manufacturers. Key players such as Samsung SDI and LG Energy Solution are accelerating the development of prototypes and scaling lab-to-production times. The government has also rolled out support schemes in 2024 to help develop pilot lines for solid-state batteries, and institutes like KIST collaborated with start-ups to drive the commercialization of emerging electrolyte technology, thereby boosting the South Korea solid-state battery market expansion. In addition, partnerships with international companies are solidifying Korea's position in the mobility and electronics battery value chain.

South Korea Solid-State Battery Market Drivers

Automakers Driving Pilot-Scale Commercialization Projects

South Korean automakers are actively making investments in the R&D of solid-state batteries to assure long-term energy security. Hyundai Motor Group, for instance, collaborated with Solid Power in 2023 to jointly develop all-solid-state EV battery cells. This is targeted at accelerating charging times and thermal safety. These OEM-driven initiatives are accelerating real-world testing and supply chain integration, opening up immediate possibilities for B2B material, equipment, and component suppliers, thus promoting the South Korea solid-state battery market expansion.

Government Incentives for Local Manufacturing and R&D

In order to enhance domestic competitiveness, the government of Korea introduced a KRW 40 billion program in 2024 to fund pilot plants for solid-state batteries and cutting-edge R&D. This has prompted startups such as Ilika Korea to scale up lab-scale manufacturing. Thus, with tax incentives and infrastructure assistance, businesses are being encouraged to localize production of critical components, ranging from sulfide-based electrolytes to ceramic separators, thus creating a healthy manufacturing ecosystem.

Trends in the South Korea Solid-State Battery Market

Sulfide Electrolytes Gaining Momentum in Commercial Prototypes

Sulfide solid electrolytes are becoming increasingly popular with their excellent ionic conductivity and lithium metal anode compatibility. By mid-2024, more than 50% of South Korea's solid-state R&D activities involved sulfide systems. Companies such as Samsung Advanced Institute of Technology are optimizing composite cathodes that complement these materials with the goal of advancing cycle life and thermal stability in high-energy, compact EV packs, thus shaping new trends in the South Korea solid-state battery market.

Rise of Medical and Wearable Device Integration

Thin-film solid-state batteries are increasingly used in medical implants and wearables because they are flexible and safe. As of 2023, more than 30% of thin-film battery applications in Korea were for medical devices. Domestic companies such as Jenax are spearheading innovation in bendable batteries, providing B2B customers in medtech and smart textiles. The transition is unlocking premium application markets outside automotive and consumer electronics.

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Purchase the Regional Overview for USD 1099

If you choose to purchase the full report at a later stage, the amount already paid will be adjusted, and you will only need to pay the remaining balance.

South Korea Solid-State Battery Industry Segmentation

South Korea Solid-State Battery Market Share

Thin Film Batteries Dominate the Market Owing to Specialized Use

Thin film batteries are becoming an indispensable part of South Korea's rapidly developing industries like medical equipment, wearable devices, and industrial IoT. The ultra-thin size factor, flexibility, and stable voltage output of the thin-film batteries make them a perfect choice for application in miniaturized electronics with limited space. As per South Korea solid-state battery market analysis, they have a longer life cycle and safer chemistry, which is essential for monitoring health and non-stop operation. In contrast to the bulky portable batteries, thin film batteries are tailored for precision-demanding environments and are widely applied in R&D-oriented prototypes and new smart devices.

20mAh to 500mAh Segment Leads Adoption Due to Application in Compact Devices

The 20mAh to 500mAh battery capacity range holds a significant share of the South Korea solid-state batteries, especially for small electronics. This range has the best balance between size and energy output and is best suited for powering medical patches, fitness trackers, smartwatches, and embedded sensors. Its application in high-volume consumer devices has led to mass production and scalability. Producers prefer this segment due to its versatility with flexible electronics and capability to sustain moderate levels of energy demand without sacrificing form factor.

Electric Vehicles Drive High-Energy Battery Demand

By application, the electric vehicles dominate the solid-state battery industry in South Korea, driven by collaborative efforts between original equipment manufacturers and battery researchers. As per South Korea solid-state battery industry analysis, automotive companies are testing high-energy-density solid-state packs, which guarantee higher ranges, charging speeds, and safety benefits over lithium-ion batteries. Despite the ongoing process of commercialization, government subsidy policies and targets towards carbon neutrality accelerate the implementation of solid-state batteries. At the same time, the market for solid-state micro-batteries is increasing in wearables and medical equipment, and industrial IoT applications are investigating energy harvesting solutions to support maintenance-free remote monitoring.

Competitive Landscape

Other key players in the report include Cymbet, SK Innovation Co., Ltd., and LG Chem, among others.

Recent Developments

May 2025

SK On announced major progress in solid-state battery technology. The firm is working on two kinds of solid-state batteries: polymer oxide and sulfide. SK On partnered with Hanyang University to find a way to increase the cycle life of all-solid-state lithium metal batteries based on sulfide by creating a protective film on the lithium metal anode, enhancing safety and lifespan.

April 2025

South Korea opened its biggest rechargeable battery research facility in Cheongju, North Chungcheong Province. The cutting-edge complex is designed to enhance innovation in battery technology to help the country shift to electric cars and renewable energy solutions.

February 2025

Hyundai announced the upcoming launch of its solid-state battery pilot plant in Uiwang, South Korea, scheduled for March. The facility will produce the "Dream" battery, which promises significant advancements in energy density, safety, autonomy, and charging speed.

March 2024

Samsung SDI plans to start mass production of all-solid-state batteries by 2027. The solid-electrolyte-based batteries provide greater energy density and improved safety than conventional lithium-ion batteries.

Market Outlook: 2026-2035

The market for Solid-State Battery in South Korea is expected to attain USD 8107.46 Million by 2035. The industry is set for enormous growth fueled by robust industrial support, R&D intensity, and global EV demand. Shifting from laboratory to pilot-scale manufacturing will yield highly profitable B2B opportunities in materials, engineering, and OEM segments.

Why This Report?

The South Korea Solid-State Battery Market Report and Forecast 2026-2035 offers a comprehensive analysis, delivering crucial insights into:

• Market size, share, and growth projections with detailed segmentation by battery type, capacity, application, and end-use industries. It highlights key innovation hubs like Seoul and Daejeon while capturing the influence of government-led R&D initiatives and electric vehicle adoption.
• SWOT and Porter’s Five Forces analyses evaluate market competitiveness, supply chain dynamics, material sourcing challenges, and opportunities for technological innovation and global partnerships in South Korea’s solid-state battery landscape.
• The report closely examines demand patterns in electric vehicles, consumer electronics, and medical devices, while addressing rising investments in safety, miniaturization, and energy efficiency.
• Actionable recommendations guide battery manufacturers, material suppliers, and investors in scaling pilot lines, automating production, and tapping emerging applications across automotive and wearable tech markets.

This report equips industry stakeholders, policymakers, and investors with strategic intelligence to capture new opportunities, accelerate commercialization, and reinforce South Korea’s leadership in solid-state battery technology.