Apr 29, 2026
Sumitomo Electric Industries, an electrical equipment manufacturer and subsidiary of the Japanese Sumitomo Group, will supply a vanadium redox flow battery (VRFB) energy storage system for grid integration of wind power in Hokkaido, northern Japan, according to a company announcement. The 11MW/33MWh (three-hour duration) flow battery project was selected through a solicitation by Hokkaido Electric Power Network (HEPCO), the regional electricity system operator and utility.
The battery will be installed at a HEPCO substation to increase the grid’s hosting capacity for local wind energy. HEPCO’s solicitation allows wind power developers to share the costs of grid-connected battery storage systems. Through the first phase of the program, HEPCO has approved 97MW of wind generation capacity for connection.
This VRFB, Sumitomo Electric’s third large-scale installation in Hokkaido, will also support the Zero Carbon City goal of Abira City, where HEPCO’s Minami-Hayakita substation is located. Completion is scheduled by the end of May 2029. Sumitomo Electric will handle operations and maintenance under a 20-year long-term service agreement after commissioning, and will also manage decommissioning at the end of the battery’s lifecycle.
Flow batteries store electrolyte in liquid form in large tanks separate from the power stack, unlike lithium-ion batteries where energy is stored in the metal electrode. This design makes flow batteries safer and more durable, capable of many thousands of cycles with minimal capacity degradation over time. The tank design also allows stored energy capacity (MWh) to be increased by expanding tank size.
In 2015, Sumitomo Electric deployed what was then the world’s largest vanadium flow battery system in Hokkaido, a 15MW/60MWh project for HEPCO. Though later surpassed in size by some Chinese projects, it remains among the biggest to date and represents Sumitomo Electric’s single largest deployment in a portfolio exceeding 200MWh. Seven years later, in early April 2022, the company completed another VRFB in Hokkaido, a 17MW/51MWh asset, despite pandemic construction conditions.
Partly due to Hokkaido’s low population density, it became a major area for renewable energy development after Japan’s push for clean energy following the 2011 Great East Japan Earthquake. However, limited grid interconnection with Honshu and the variable nature of renewable generation led to grid curtailment. In 2016, HEPCO became the first system operator in Japan to mandate energy storage deployment, initially for solar PV plants over 2MW.
Sumitomo Electric stated its VRFB was selected through the tender due to long service life, high safety and environmental performance, and a proven track record including its earlier Hokkaido projects. In spring 2025, the company became the first in Japan’s energy storage market to deploy a VRFB for energy trading opportunities, a few months after announcing the first VRFB approved for a government capital expenditure support scheme. It also deployed what remains the largest publicly announced vanadium flow battery plant in the United States, a 2MW/8MWh system in California, in 2017.
Interactive table based on the Store Companies dataset for this report.
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#
Company
Headquarters
Focus
Scale
Note
1
Panasonic Holdings Corporation
Kadoma, Osaka
Automotive & Industrial batteries
Global Giant
Key Tesla supplier via Giga Nevada JV
2
Prime Planet Energy & Solutions
Tokyo
Automotive prismatic batteries
Large
Toyota & Panasonic JV for HEV/PHEV/BEV
3
GS Yuasa International Ltd.
Kyoto
Industrial & Automotive (LiB)
Large
Major for HEVs, aerospace, industrial
4
Murata Manufacturing Co., Ltd.
Nagaokakyo, Kyoto
Small polymer Li-ion
Large
Acquired Sony’s battery business
5
Envision AESC Group
Zama, Kanagawa
Automotive pouch & module
Large
Chinese-owned but HQ in Japan, supplies Nissan
6
Toyota Industries Corporation
Kariya, Aichi
Batteries for Toyota vehicles
Large
Produces for parent Toyota’s electrified models
7
Maxell Holdings, Ltd.
Tokyo
Small Li-ion for devices
Medium
Consumer electronics batteries
8
FDK Corporation
Tokyo
Small Li-ion cylindrical
Medium
Subsidiary of Fujitsu, various applications
9
Eamex Corporation
Osaka
High-power polymer Li-ion
Medium
Specializes in laminate cells for tools/EVs
10
Sanyo Chemical Industries, Ltd.
Kyoto
Battery materials & packs
Medium
Polymer electrolytes, battery systems
11
Hitachi, Ltd.
Tokyo
Industrial & automotive systems
Large
Battery systems for EVs, rail, energy via Hitachi Astemo
12
Toshiba Corporation
Tokyo
SCiB lithium-titanate batteries
Large
Fast-charging, long-life for EVs & infrastructure
13
Mitsubishi Electric Corporation
Tokyo
Battery Packs & Energy Systems
Large
ESS and EV battery pack integration
14
NEC Corporation
Tokyo
ESS via NEC Energy Solutions
Large
Large-scale energy storage systems
15
Suzuki Motor Corporation
Hamamatsu, Shizuoka
Batteries for compact EVs/HEVs
Medium
In-house production for own vehicles
16
Honda Motor Co., Ltd.
Tokyo
Batteries for Honda EVs
Large
Developing in-house with JV partners (e.g., GS Yuasa)
17
Nissan Motor Co., Ltd.
Yokohama
Batteries for Nissan EVs
Large
Historical production, now via AESC JV/ownership
18
Makita Corporation
Anjo, Aichi
Power tool batteries
Large
Major producer of Li-ion for cordless tools
19
FDK Twicell Co., Ltd.
Tokyo
Cylindrical Li-ion
Medium
FDK subsidiary for battery manufacturing
20
VentureBattery Inc.
Kyoto
Custom battery packs
Small
Design and assembly of battery systems
21
ELIIY Power Co., Ltd.
Tokyo
Large-scale ESS
Medium
Stationary storage using Li-ion
22
Japan Storage Battery Co., Ltd.
Kyoto
Industrial batteries
Medium
GS Yuasa subsidiary for specific markets
23
Leclanché SA Japan
Tokyo
ESS & Marine batteries
Medium
Japanese office of Swiss firm, local assembly
24
PJP Eye Ltd.
Tokyo
Portable device batteries
Small
Battery pack designer and manufacturer
25
Takaoka Toko Co., Ltd.
Tokyo
Battery systems for ESS/EV
Medium
Power conversion and battery integration
26
Furukawa Battery Co., Ltd.
Yokohama
Lithium primary & Li-ion packs
Medium
Also produces Li-ion for specific applications
27
Shin-Kobe Electric Machinery Co., Ltd.
Tokyo
Industrial Li-ion batteries
Medium
Hitachi Chemical (now Showa Denko) subsidiary
28
Nippon Chemi-Con Corporation
Tokyo
Capacitors & battery materials
Medium
Engaged in battery component production
29
Yokogawa Electric Corporation
Tokyo
Battery manufacturing systems
Large
Production equipment for cell manufacturing
30
Sumitomo Electric Industries, Ltd.
Osaka
Battery materials & systems
Large
Active in solid-state battery development
This report provides a comprehensive view of the lithium-ion accumulator industry in Japan, tracking demand, supply, and trade flows across the national value chain. It explains how demand across key channels and end-use segments shapes consumption patterns, while also mapping the role of input availability, production efficiency, and regulatory standards on supply.
Beyond headline metrics, the study benchmarks prices, margins, and trade routes so you can see where value is created and how it moves between domestic suppliers and international partners. The analysis is designed to support strategic planning, market entry, portfolio prioritization, and risk management in the lithium-ion accumulator landscape in Japan.
Quick navigation
Key findings
Domestic demand is shaped by both household and industrial usage, with trade flows linking local supply to imports and exports.
Pricing dynamics reflect unit values, freight costs, exchange rates, and regulatory shifts that affect sourcing decisions.
Supply depends on input availability and production efficiency, creating a distinct national cost curve.
Market concentration varies by segment, creating different competitive landscapes and entry barriers.
The 2035 outlook highlights where capacity investment and demand growth are most aligned within the country.
Report scope
The report combines market sizing with trade intelligence and price analytics for Japan. It covers both historical performance and the forward outlook to 2035, allowing you to compare cycles, structural shifts, and policy impacts.
Market size and growth in value and volume terms
Consumption structure by end-use segments
Production capacity, output, and cost dynamics
Trade flows, exporters, importers, and balances
Price benchmarks, unit values, and margin signals
Competitive context and market entry conditions
Product coverageProdcom 27202350 – Lithium-ion accumulatorsCountry coverageCountry profile and benchmarks
This report provides a consistent view of market size, trade balance, prices, and per-capita indicators for Japan. The profile highlights demand structure and trade position, enabling benchmarking against regional and global peers.
Methodology
The analysis is built on a multi-source framework that combines official statistics, trade records, company disclosures, and expert validation. Data are standardized, reconciled, and cross-checked to ensure consistency across time series.
International trade data (exports, imports, and mirror statistics)
National production and consumption statistics
Company-level information from financial filings and public releases
Price series and unit value benchmarks
Analyst review, outlier checks, and time-series validation
All data are normalized to a common product definition and mapped to a consistent set of codes. This ensures that comparisons across time are aligned and actionable.
Forecasts to 2035
The forecast horizon extends to 2035 and is based on a structured model that links lithium-ion accumulator demand and supply to macroeconomic indicators, trade patterns, and sector-specific drivers. The model captures both cyclical and structural factors and reflects known policy and technology shifts in Japan.
Historical baseline: 2012-2025
Forecast horizon: 2026-2035
Scenario-based sensitivity to income growth, substitution, and regulation
Capacity and investment outlook for major producing companies
Each projection is built from national historical patterns and the broader regional context, allowing the report to show where growth is concentrated and where risks are elevated.
Price analysis and trade dynamics
Prices are analyzed in detail, including export and import unit values, regional spreads, and changes in trade costs. The report highlights how seasonality, freight rates, exchange rates, and supply disruptions influence pricing and margins.
Price benchmarks by country and sub-region
Export and import unit value trends
Seasonality and calendar effects in trade flows
Price outlook to 2035 under baseline assumptions
Profiles of market participants
Key producers, exporters, and distributors are profiled with a focus on their operational scale, geographic footprint, product mix, and market positioning. This helps identify competitive pressure points, partnership opportunities, and routes to differentiation.
Business focus and production capabilities
Geographic reach and distribution networks
Cost structure and pricing strategy indicators
Compliance, certification, and sustainability context
How to use this report
Quantify domestic demand and identify the most attractive segments
Evaluate export opportunities and prioritize target destinations
Track price dynamics and protect margins
Benchmark performance against leading competitors
Build evidence-based forecasts for investment decisions
This report is designed for manufacturers, distributors, importers, wholesalers, investors, and advisors who need a clear, data-driven picture of lithium-ion accumulator dynamics in Japan.
FAQ
What is included in the lithium-ion accumulator market in Japan?
The market size aggregates consumption and trade data, presented in both value and volume terms.
How are the forecasts to 2035 built?
The projections combine historical trends with macroeconomic indicators, trade dynamics, and sector-specific drivers.
Does the report cover prices and margins?
Yes, it includes export and import unit values, regional spreads, and a pricing outlook to 2035.
Which benchmarks are included?
The report benchmarks market size, trade balance, prices, and per-capita indicators for Japan.
Can this report support market entry decisions?
Yes, it highlights demand hotspots, trade routes, pricing trends, and competitive context.
1. INTRODUCTION
Report Scope and Analytical Framing
Report DescriptionResearch Methodology and the Analytical FrameworkData-Driven Decisions for Your BusinessGlossary and Product-Specific Terms2. EXECUTIVE SUMMARY
Concise View of Market Direction
Key FindingsMarket TrendsStrategic ImplicationsKey Risks and Watchpoints3. DOMESTIC MARKET SIZE AND DEVELOPMENT PATH
Market Size, Growth and Scenario Framing
Market Size: Historical Data (2012-2025) and Forecast (2026-2035)Growth Outlook and Market Development Path to 2035Growth Driver DecompositionScenario Framework and Sensitivities4. CATEGORY SCOPE, DEFINITIONS AND BOUNDARIES
Commercial and Technical Scope
What Is Included and How the Market Is DefinedMarket Inclusion CriteriaProduct / Category DefinitionExclusions and BoundariesDistinction From Adjacent Products and Substitute Categories5. CATEGORY STRUCTURE, SEGMENTATION AND PRODUCT MATRIX
How the Market Splits Into Decision-Relevant Buckets
By Product Type / ConfigurationBy Application / End UseBy Customer / Buyer TypeBy Channel / Business Model / Technology PlatformSegment Attractiveness MatrixProduct Matrix and Segment Growth Logic6. DOMESTIC DEMAND, CUSTOMER AND BUYER ARCHITECTURE
Where Demand Comes From and How It Behaves
Consumption / Demand: Historical Data (2012-2025) and Forecast (2026-2035)Demand by End-Use and Buyer GroupDemand by Customer / Consumer SegmentPurchase Criteria, Switching Logic and Adoption BarriersReplacement, Replenishment and Installed-Base DynamicsFuture Demand Outlook7. DOMESTIC PRODUCTION, SUPPLY AND VALUE CHAIN
Supply Footprint and Value Capture
Production in the CountryDomestic Manufacturing FootprintCapacity, Bottlenecks and Supply RisksValue Chain Logic and Margin PoolsDistribution and Route-to-Market Structure8. IMPORTS, EXPORTS AND SOURCING STRUCTURE
Trade Flows and External Dependence
ExportsImportsTrade BalanceImport DependenceSourcing Risks and Resilience9. PRICING, PROMOTION AND COMMERCIAL MODEL
Price Formation and Revenue Logic
Domestic Price Levels and CorridorsPricing by Segment / Specification / ChannelCost Drivers and Margin LogicPromotion, Discounting and Procurement PatternsRevenue Quality and Commercial Levers10. COMPETITIVE LANDSCAPE AND PORTFOLIO POWER
Who Wins and Why
Market Structure and ConcentrationCompetitive ArchetypesSegment-by-Segment Competitive IntensityPortfolio Breadth and Product PositioningCapability MatrixStrategic Moves, Partnerships and Expansion Signals11. DOMESTIC MARKET STRUCTURE AND CHANNEL LOGIC
How the Domestic Market Works
Core Demand CentersLocal Production and Distribution RolesChannel StructureBuyer and Procurement ArchitectureRegional Imbalances Within the Country12. GROWTH PLAYBOOK AND MARKET ENTRY
Commercial Entry and Scaling Priorities
Where to PlayHow to WinDistributor / Partner / Direct Entry OptionsCapability ThresholdsEntry Risks and Mitigation13. WHERE TO PLAY NEXT: MOST ATTRACTIVE GROWTH OPPORTUNITIES
Where the Best Expansion Logic Sits
Most Attractive Product NichesMost Attractive Customer SegmentsWhite Spaces and Unsaturated OpportunitiesHigh-Margin and Underpenetrated PocketsMost Promising Product Adjacencies14. PROFILES OF MAJOR COMPANIES
Leading Players and Strategic Archetypes
Leading Manufacturers and SuppliersProduction Footprint and CapacitiesProduct Portfolio and Segment FocusPricing Positioning and Indicative Price LogicChannel / Distribution StrengthStrategic Archetypes15. METHODOLOGY, SOURCES AND DISCLAIMER
How the Report Was Built
Modeling LogicSource RegisterPublications, Regulatory and Industry ReferencesAnalytical NotesDisclaimer
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Panasonic Holdings Corporation
Key Tesla supplier via Giga Nevada JV
Prime Planet Energy & Solutions
Toyota & Panasonic JV for HEV/PHEV/BEV
GS Yuasa International Ltd.
Major for HEVs, aerospace, industrial
Murata Manufacturing Co., Ltd.
Acquired Sony’s battery business
Envision AESC Group
Chinese-owned but HQ in Japan, supplies Nissan
Toyota Industries Corporation
Produces for parent Toyota’s electrified models
Maxell Holdings, Ltd.
Consumer electronics batteries
FDK Corporation
Subsidiary of Fujitsu, various applications
Eamex Corporation
Specializes in laminate cells for tools/EVs
Sanyo Chemical Industries, Ltd.
Polymer electrolytes, battery systems
Hitachi, Ltd.
Battery systems for EVs, rail, energy via Hitachi Astemo
Toshiba Corporation
Fast-charging, long-life for EVs & infrastructure
Mitsubishi Electric Corporation
ESS and EV battery pack integration
NEC Corporation
Large-scale energy storage systems
Suzuki Motor Corporation
In-house production for own vehicles
Honda Motor Co., Ltd.
Developing in-house with JV partners (e.g., GS Yuasa)
Nissan Motor Co., Ltd.
Historical production, now via AESC JV/ownership
Makita Corporation
Major producer of Li-ion for cordless tools
FDK Twicell Co., Ltd.
FDK subsidiary for battery manufacturing
VentureBattery Inc.
Design and assembly of battery systems
ELIIY Power Co., Ltd.
Stationary storage using Li-ion
Japan Storage Battery Co., Ltd.
GS Yuasa subsidiary for specific markets
Leclanché SA Japan
Japanese office of Swiss firm, local assembly
PJP Eye Ltd.
Battery pack designer and manufacturer
Takaoka Toko Co., Ltd.
Power conversion and battery integration
Furukawa Battery Co., Ltd.
Also produces Li-ion for specific applications
Shin-Kobe Electric Machinery Co., Ltd.
Hitachi Chemical (now Showa Denko) subsidiary
Nippon Chemi-Con Corporation
Engaged in battery component production
Yokogawa Electric Corporation
Production equipment for cell manufacturing
Sumitomo Electric Industries, Ltd.
Active in solid-state battery development
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