HiNa Battery Expands Sodium-Ion Supply Agreement with South Korea’s Volta Co. from 15 MWh to 10 GWh Over Five Years

September 13, 2026

PV Magazine China

Overview

Chinese sodium-ion battery manufacturer HiNa Battery signed a five-year agreement with South Korea’s Volta Co. to supply 10 GWh of sodium-ion batteries, significantly expanding a previous 15 MWh storage partnership. This deal, signed on September 2, 2026, involves HiNa providing cell technology and manufacturing, while Volta handles system integration and market development in South Korea, with Kwangwoon University as a technical verification partner. This gigawatt-scale deployment, following major agreements by CATL, signifies a clear shift towards large-scale sodium-ion technology in stationary storage.

In Depth

Key Findings

Chinese sodium-ion battery manufacturer HiNa Battery has dramatically scaled its supply agreement with South Korea’s Volta Co., expanding from a previous 15 MWh storage partnership to a massive 10 GWh supply over five years. This landmark deal, signed on September 2, 2026, signals a clear transition towards gigawatt-scale deployments for sodium-ion technology in the stationary storage sector.

Technical & Partnership Details

Gigawatt-Scale Deployment: The 10 GWh agreement highlights the growing confidence in sodium-ion battery technology for large-scale applications, moving beyond pilot projects to substantial commercial deployments. This indicates that the technology’s performance, cost-effectiveness, and safety are now competitive for utility-scale and industrial uses.
Division of Labor: Under the agreement, HiNa Battery will provide its advanced sodium-ion cell technology and manufacturing expertise. Volta Co. will be responsible for system integration and market development within South Korea, tailoring solutions to local market needs. Kwangwoon University will serve as a technical verification partner, ensuring the reliability and performance of the deployed systems.
Strategic Significance: This partnership underscores the acceleration of international collaboration and market expansion for sodium-ion technology between key battery-producing nations. It addresses increasing concerns about lithium resource scarcity and supply chain volatility, positioning sodium-ion as a strategic alternative with lower geopolitical risks.

Background & Industry Context

Sodium-ion batteries utilize abundant and inexpensive sodium as their primary raw material, offering a significant advantage over lithium-ion in terms of material cost and supply chain stability. While historically lagging in energy density and cycle life, recent technological advancements have made sodium-ion batteries highly competitive for stationary storage applications. This trend is reinforced by other major deals, such as CATL’s 60 GWh agreement with HyperStrong and 5 GWh with Alfen in Europe, demonstrating an industry-wide shift towards gigawatt-scale sodium-ion deployments.

Outlook

The substantial agreement between HiNa Battery and Volta Co. solidifies the role of sodium-ion batteries as a critical solution for grid stabilization, especially with the global expansion of renewable energy sources like solar and wind. Large-scale deployments of sodium-ion technology are expected to enhance grid resilience and potentially reduce electricity costs for consumers. This development introduces new competition into the global energy storage market, driving further innovation and accelerating the transition to a more sustainable and diversified energy future.

Source: https://www.pv-magazine.com/2026/09/08/hina-battery-scales-korean-sodium-ion-partnership-from-15-mwh-to-10-gwh/

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