Saltwater Batteries Market Report 2025

This Saltwater Batteries market report provides a comprehensive analysis of the market’s characteristics, size, and growth, including segmentation, regional and country-level breakdowns, competitive landscape, market shares, trends, and strategies. It also tracks historical and forecasted market growth across various geographies.

The saltwater batteries market size has grown exponentially in recent years. It will grow from $14.01 billion in 2024 to $16.92 billion in 2025 at a compound annual growth rate (CAGR) of 20.8%. The growth in the historic period can be attributed to growing awareness and concern about environmental pollution, increasing adoption of renewable energy sources, increasing desire for greater energy security, increasing consumer preference for eco-friendly products, and rising awareness and adoption of sustainable practices.

The saltwater batteries market size is expected to see exponential growth in the next few years. It will grow to $35.56 billion in 2029 at a compound annual growth rate (CAGR) of 20.4%. The growth in the forecast period can be attributed to increased energy density, increasing focus on disaster preparedness and resilience planning, rising demand for reliable and scalable energy storage systems, increased investment in research and development, and increased use of large-scale energy storage in industrial applications. Major trends in the forecast period include innovations in battery technology, grid modernization, renewable energy integration, innovation in energy storage, and infrastructure development.

The increasing demand for energy storage is expected to drive growth in the saltwater batteries market in the coming years. Energy storage involves capturing energy produced at one time for later use, helping to balance energy demand and production. This demand is rising due to decreasing costs, the widespread adoption of renewable energy sources, the necessity for reliable and resilient grids, and supportive policies such as tax incentives. Saltwater batteries offer a safe and environmentally friendly solution for energy storage, utilizing abundant materials and posing minimal environmental risk. For example, as of July 2023, grid-scale battery storage capacity globally had reached nearly 28 GW by the end of 2022, with installations increasing by over 75% from the previous year, adding approximately 11 GW of storage capacity. Thus, the growing demand for energy storage is a significant driver of the saltwater batteries market.

Key players in the saltwater batteries market are concentrating on developing advanced products, such as eco-friendly saltwater batteries, to enhance their competitive position. Eco-friendly saltwater batteries use a saline solution as an electrolyte instead of toxic chemicals, ensuring environmental safety. For instance, in January 2024, Salgenx, a US-based provider of energy storage solutions, introduced an innovative saltwater battery designed for residential energy storage. This battery employs sodium chloride (NaCl) for charging and recombination, offering a safe and environmentally friendly alternative to traditional batteries. Unlike conventional models, this redox flow energy storage system operates without a membrane and uses non-flammable saltwater, ensuring exceptional safety. Its modular design allows for flexible installation in various settings, such as garages, underground facilities, or integrated into building structures. With a storage capacity of 126 kWh, the Salgenx battery can be expanded with additional electrolyte liquid and cathode materials, achieving impressive efficiency of 91% and a power output of 20 kW.

In December 2023, Statkraft AS, a Norway-based renewable energy company, partnered with Aquabattery to develop and commercialize an innovative saltwater flow battery technology known as LDES. This technology aims to enhance long-term electricity storage capabilities using saltwater, testing scalability and commercial viability in Delft, the Netherlands. AquaBattery B.V., based in the Netherlands, specializes in sustainable and safe long-term energy storage solutions.

Major companies operating in the saltwater batteries market are General Electric Company, BYD Company Ltd., Panasonic Corporation, MANLY Battery, Contemporary Amperex Technology Co. Limited (CATL), Toshiba Corporation, LG Energy Solution Ltd., SAMSUNG SDI Co. Ltd., Fuji Electric Co. Ltd., EVE Energy, AMTE Power Plc, Exide Industries, Altris Group, Gotion High-Tech Co. Ltd., SVOLT Energy Technology, Sainik Industries, EnergySage, Su-Kam Power Systems, Altech Batteries Ltd, Aquion Energy, Faradion Limited, BlueSky Energy, BroadBit Batteries Oy, Greenrock Capital LLC, HiNa Battery Technology Co. Ltd, Tiamat Energy.

North America was the largest region in the saltwater batteries market in 2024. Asia-Pacific is expected to be the fastest-growing region in the forecast period. The regions covered in the saltwater batteries market report are Asia-Pacific, Western Europe, Eastern Europe, North America, South America, Middle East, Africa. The countries covered in the saltwater batteries market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

Saltwater batteries, also referred to as saline batteries, are a type of rechargeable battery that employs a saline solution (salt water) as its electrolyte. Typically, they consist of two electrodes submerged in a saltwater solution, enabling the movement of ions between the electrodes during charge and discharge cycles. These batteries are renowned for their safety and environmental friendliness, largely due to the non-toxic properties of the electrolyte.

The primary varieties of saltwater batteries include those rated at 12 volts, 24 volts, and 48 volts. A 12-volt saltwater battery utilizes a saltwater electrolyte to store electrical energy. It comprises cathode, anode, and electrolyte components, with capacities ranging from low to high. Battery chemistry options encompass sodium-ion, magnesium-ion, and others. These batteries find application across diverse sectors such as residential, industrial, commercial, governmental, and enterprise settings.

The saltwater batteries market research report is one of a series of new reports that provides saltwater batteries market statistics, including saltwater batteries industry global market size, regional shares, competitors with a saltwater batteries market share, detailed saltwater batteries market segments, market trends and opportunities, and any further data you may need to thrive in the saltwater batteries industry. This saltwater batteries market research report delivers a complete perspective of everything you need, with an in-depth analysis of the current and future scenario of the industry.

The saltwater batteries market consists of sales of sodium-nickel-chloride batteries, sodium-sulfur batteries, and sodium-ion batteries. Values in this market are ‘factory gate’ values, that is the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD, unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

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