Energy Storage Semi-Solid-State Battery Industry Analysis: Reach USD 1170 Million by 2031 with 23.7% CAGR

According to the recent report from QYResearch, the global Energy Storage Semi-Solid-State Battery market is moving into a phase of rapid expansion. After reaching a value of USD 264 million in 2024, the market is projected to hit USD 1.17 billion by 2031, with a compound annual growth rate of 23.7% between 2025 and 2031. In 2024, production volumes reached approximately 0.95 GWh, with an average global market price of around USD 278 per kWh.

The technology is positioned between traditional lithium-ion batteries and all-solid-state batteries, offering the high ionic conductivity of liquid electrolytes with improved thermal stability and safety. Recent project launches and large-scale orders indicate that semi-solid-state batteries are no longer confined to the lab or pilot scale but are now being adopted in grid-scale projects and advanced data infrastructure.

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Leading Companies

Panasonic
LG
QuantumScape
SK Innovation
Samsung SDI
SES AI Corporation
Ilika
Narada Power
WELION New Energy
Talent New Energy
Qingtao Energy
BAK Power
Ganfeng Lithium
Sunwoda

Applications

Communication Base Stations
Data Centers
Computing Centers
Rail Transit
Others

Classification

By Type
Square
Cylindrical

By Product Category
400 Wh/kg

Latest Market Data

· Global market size: USD 264 million in 2024, forecast USD 1.17 billion by 2031

· CAGR (2025-2031): 23.7%

· Global production in 2024: ~0.95 GWh

· Average global market price in 2024: ~USD 278/kWh

Recent Company Achievements and Industry Highlights

WELION New Energy delivered the world's first large-scale semi-solid-state battery energy storage system in 2024, a 100 MW/200 MWh project in Zhejiang, China. The project uses 280 Ah semi-solid LFP cells with an energy density of 165 Wh/kg and cycle life of around 6,000. A second phase will expand capacity to 200 MW/400 MWh.

Narada Power introduced a 783 Ah solid-state ESS cell in 2025, enabling containerized storage systems with up to 8.3 MWh capacity per 20-foot unit. The company secured 2.8 GWh of orders across three projects in Shenzhen and Shanwei, the largest semi-solid ESS order to date.

Talent New Energy achieved a breakthrough in 2024 with a 120 Ah all-solid lithium-metal prototype offering 720 Wh/kg, signaling the next stage in ultra-high-density energy storage.

Ganfeng Lithium has brought its first generation of solid-state cells into mass production with 240-270 Wh/kg energy density and over 2,000 cycles. Its second generation, targeting over 400 Wh/kg, is under development, with commercial applications expected to benefit from these higher densities.

Sunwoda completed development of its first-generation semi-solid cell at ~300 Wh/kg and is piloting a second generation at ~400 Wh/kg. These advances highlight the trend toward both higher gravimetric and volumetric densities suitable for stationary storage and next-generation EV platforms.

Product Profiles

Narada Power - Center L Max 20-ft Semi-Solid ESS System

· Cell: 783 Ah oxide-electrolyte semi-solid-state

· Capacity: up to 8.3 MWh per 20-ft container

· Voltage platform: 2000 V for reduced current and higher efficiency

· Applications: Utility-scale and C&I installations

· Market milestone: Anchored by 2.8 GWh of orders in 2025

WELION New Energy - 280 Ah Semi-Solid LFP Cell

· Energy density: ~165 Wh/kg

· Cycle life: ~6000 cycles

· Deployment: 100 MW/200 MWh Longquan project in 2024

· Significance: Demonstrated safety and scalability for grid ESS

Ganfeng Lithium - Solid-State Cell Portfolio

· 1st generation: 240-270 Wh/kg, >2000 cycles, commercial production

· 2nd generation: >400 Wh/kg, under development

· Application: High-density ESS racks for data centers and computing hubs

Talent New Energy - 120 Ah All-Solid Lithium-Metal Prototype

· Energy density: ~720 Wh/kg

· Technology: Lithium-metal anode, all-solid design

· Status: Prototype validation, scaling toward 2026-2027

Sunwoda - Semi-Solid Development Line

· 1st generation: ~300 Wh/kg, completed R&D

· 2nd generation: ~400 Wh/kg, pilot testing phase

· Potential: Enables higher-capacity containerized ESS systems

Downstream Customers

PowerChina
State Grid Zhejiang Electric Power
China Mobile
China Telecom
China Unicom
Alibaba Cloud
Tencent Cloud
Baidu
Chindata Group
CRRC Corporation
MTR Corporation
China Huaneng Group
China Three Gorges Renewables
China Resources Power
Shanghai Electric

Market Trends

Safety as a Core Buying Driver

Energy storage projects are increasingly evaluated on safety credentials. Semi-solid batteries reduce free-liquid electrolyte content, improving thermal stability and lowering fire risks. Large deployments such as the Longquan project validated the safety-performance balance at scale.

Upsized Cells, Reduced System Costs

The shift to large-format cells such as 314 Ah and 783 Ah reduces the number of modules required, lowers copper use, and enables higher-voltage system designs up to 2000 V. These advances cut balance-of-system costs and improve round-trip efficiency, making semi-solid ESS more competitive for long-duration storage.

From Pilot Projects to Multi-GWh Orders

With Narada's 2.8 GWh order in 2025, the semi-solid ESS industry crossed a critical threshold. This demonstrates repeatability, financial viability, and readiness for large urban and provincial grid deployments.

High Energy Density for Data and Compute Centers

Growing demand from AI and HPC data centers requires high-density, safe, and compact storage. Ganfeng and Sunwoda are developing cells in the 400 Wh/kg range, which will allow data centers to pack more capacity per square meter. Talent New Energy's 720 Wh/kg prototype hints at dramatic efficiency gains for future energy-intensive compute hubs.

Policy and Tariff Impacts

The evolving U.S. tariff policy in 2025 has raised costs for imported cells and modules, pushing companies toward localizing supply chains and securing regional sourcing of electrolytes and separators. While this adds short-term uncertainty, it is accelerating domestic investment in semi-solid-state manufacturing capacity.

Expansion of Application Scope

Beyond grid-scale deployments, telecom operators and data facilities are beginning to replace legacy lead-acid systems with semi-solid batteries due to their safety and reduced maintenance. Pilot programs in 5G networks and edge computing sites highlight broader adoption potential.

Europe and Asia Lead in Diversification

In addition to semi-solid systems, regions such as Europe are piloting alternative chemistries, including flow and organic solid-flow technologies, while maintaining semi-solid deployments for critical infrastructure. This signals a future where multiple storage chemistries coexist, segmented by use case.

Narrowing Cost Gap With Lithium-Ion

Semi-solid-state batteries are approaching cost parity with conventional LFP as volume scales. At USD 278/kWh in 2024, their premium over lithium-ion is narrowing, particularly when lifecycle costs and safety benefits are factored in.

Supply Chain Partnerships and Joint Ventures

Strategic collaborations between battery firms and suppliers of separators, electrolytes, and enclosures are becoming essential. These agreements provide supply security and mitigate tariff risks, reinforcing global expansion strategies for 2025 and beyond.

Conclusion

The Energy Storage Semi-Solid-State Battery market in 2025 stands at an inflection point. Key breakthroughs in safety, density, and scale have transformed the technology from a promising prototype into a commercial product powering real grid and data applications. With multi-GWh orders secured, tariffs reshaping supply strategies, and density breakthroughs opening new applications, semi-solid-state batteries are set to become a mainstream option in global energy storage portfolios over the next decade.

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