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This section provides an overview for storage batteries as well as their applications and principles. Also, please take a look at the list of 22 storage battery manufacturers and their company rankings. Here are the top-ranked storage battery companies as of October, 2025: 1.Accelera, 2.Sustainable Capital Finance, 3.Deye ESS Technology Co., Ltd.
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Categories Related to Storage Batteries
Postdoctoral researcher, conducting research on the production of cathode composite particles for solid-state batteries in the Equipment Engineering Group of Osaka Prefecture University.
Belongs to the Resource and Energy Recycling Laboratory, Nagaoka University of Technology, and conducts research on the development of DDR-type zeolite membranes for CO2 separation and the capture of CO2 from digestion gas generated from sewage treatment plants.
https://researchmap.jp/eiji-hayakawa
Thesis
https://doi.org/10.3390/membranes11080623
http://www.ijcea.org/index.php?m=content&c=index&a=show&catid=109&id=1177
https://www.sciencedirect.com/science/article/abs/pii/S1387181119305529?via%3Dihub
https://www.sciencedirect.com/science/article/abs/pii/S138358661833154X?via%3Dihub
A storage battery is a mechanical device that stores electric power as chemical energy. Batteries include primary batteries, which can only be discharged and not recharged, and secondary batteries, which can be repeatedly charged and discharged. A storage battery refers to a secondary battery.
The need for storage batteries has been drawing attention, not only as a backup power source but also for their use in storing renewable energy. They also are cost-effective and energy-saving devices such as for averaging power use during the day.
Storage batteries are used in a wide range of applications, from home to industrial use.
For home use, they can be used in conjunction with solar power generation to save electricity. For example, solar power can be harnessed during the daytime and sold if there is a surplus. Even if electricity is not sold, it can be stored in batteries during the day, along with late-night power obtained at a discounted rate. This stored power can then be utilized during the night, after the sun has set, effectively saving electricity. In addition, even if a power outage occurs due to a disaster, the electricity in the storage batteries can be used.
For industrial use, storage batteries are also used as backup power sources for high-power applications and uninterruptible power supplies for instrumentation. The major difference between industrial use and household use is the electrical capacity.
The principle of operation of storage batteries differs slightly from one type to another, but the mechanism of extracting electric power through a chemical reaction remains the same. Storage batteries consist of a positive electrode, a negative electrode, and an electrolyte that assists with the chemical reaction between the positive and negative electrodes.
Lead storage batteries are the oldest of all storage batteries and are mainly used in car batteries and emergency backup power sources. They use lead dioxide for the positive electrode, lead for the negative electrode, and dilute sulfuric acid for the electrolyte. They are inexpensive, highly resistant to overcharging, and have a very long service life of approximately 17 years. Its low energy efficiency in charging and discharging is a disadvantage.
These batteries use nickel oxyhydroxide for the positive electrode, a hydrogen storage alloy for the negative electrode, and an alkaline solution, such as potassium hydroxide for the electrolyte. Before lithium-ion batteries, they were used as batteries for mobile devices and are still used in hybrid cars and railroad ground storage facilities. They are characterized by their resistance to over-discharge and over-charge and their ability to be rapidly charged and discharged, but their large self-discharge rate and short lifespan of about 5 to 7 years are their disadvantages.
These batteries use lithium-containing metal oxide for the positive electrode, carbon material for the negative electrode, and organic electrolyte for the electrolyte. They are widely used as batteries for electronic devices used in daily life, such as notebook computers and smartphones, and in recent years, they have also been adopted as batteries for electric vehicles. They are characterized by their high energy density and ability to charge and discharge rapidly. They also have a relatively long service life of 6 to 10 years, but their cost is higher than other batteries.
Also called NaS batteries, these batteries use sulfur for the positive electrode, sodium for the negative electrode, and β-alumina for the electrolyte, and are used as backup power sources for large-scale facilities such as factories. They are also known as NAS batteries and are used as backup power sources for large-scale facilities such as factories. They feature almost no self-discharge, excellent charge-discharge efficiency, and energy density. They offer a long service life of about 15 years and are attracting considerable attention as industrial batteries. In addition, cost reductions can be expected because of the abundant resources of electrode materials. However, the operating temperature is 300°C, so the high temperature must be maintained with a heater, and the electrode material is a hazardous material, so safety is a major issue.
Other new batteries, such as redox flow batteries, in which the electrolyte tank and cell stack can be installed separately, are also emerging.
*Including some distributors, etc.
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S & C Electric Co. is a manufacturer of switching, protection, and control solutions, founded in 1911, with headquarters in Chicago, Illinois, United States. The company designs and manufactures switching and protection products for electric power transmission and distribution. These include automatic switch operating boxes for power lines, as well as indoor and outdoor circuit interruption switches, custom switchgear, and more. These products are designed to help deliver electric power efficiently.
Accelera by Cummins, based out of Columbus, Indiana, United States, is a zero-emission solution designer, manufacturer, and supplier. The company offers solutions that include battery systems, e-powertrain systems, and electrolyzers. Its products include high-voltage packs, remote mounts, and accessory systems that are used in hydrogen production for trucks, buses, and boats, as well as industries that include rail and mining. The company partnered with Gevo and Zero6 Energy for its first sustainable aviation project, and Blue Bird delivered its 1500th electric school bus with its components in 2023.
Sustainable Capital Finance is a financial solutions provider based in the United States, established in 2012. The company specializes in offering financing solutions for renewable energy projects, empowering businesses to transition to sustainable and environmentally-friendly energy sources. The range of services includes project financing, capital management, and consultation, enabling clients to realize the benefits of renewable energy without the upfront financial burden. The company's target audience includes commercial and industrial entities seeking to harness the potential of renewable energy solutions. The company looks to reducing carbon footprints, enhancing energy efficiency, and promoting a greener future.
MK Battery, founded in 1983 and headquartered in Anaheim, CA, is a supplier of battery solutions for deep cycle and standby power applications. The company supplies Sealed VRLA genuine gel batteries for energy storage, floor cleaning, mass notification systems, battery chargers, and SVR car audio. The company is a sponsor and the official battery of the United States Power Soccer Association and TEAM USA National Power Soccer Team. The company is also a subsidiary of East Penn Manufacturing Co.
VARTA AG is a German manufacturer of batteries and energy storage products that was established in 1887 in Ellwangen, Baden-Württemberg. The company produces nickel-metal hydride batteries for industrial applications, lithium-ion batteries for consumer electronics, and primary alkaline or zinc air batteries for common household items such as toys. It also offers energy storage products for use in the commercial and residential sectors, such as in solar power systems. The company is certified to ISO 9001, ISO 14001, and ISO 45001 standards. It is the parent company of VARTA Microbattery and VARTA Storage.
Siemens Energy is a manufacturer and supplier of energy technology since 2020 and is headquartered in Munich, Germany. They design, manufacture and provide energy technology solutions that suit specific application requirements. Their offerings include power and heat generation, grid technologies, and renewable energy solutions like wind energy, and energy services aimed at optimizing performance and achieving maximum output. Siemens Energy provides services and products to a wide range of industries, including power generation, transmission and distribution, renewable energy, and industrial operations. Their products and services help these industries improve their energy efficiency with sustainability.
Shenzhen CONSNANT Technology Co., Ltd., founded in 2015 and headquartered in Shenzhen, China, is a manufacturer of customized backup power solutions. The company is engaged in the R&D and production of UPS, outdoor solutions, and lithium ESS (Energy storage system). It offers a range of UPS systems, such as modular, industrial, and communication UPS which can be used in data and computing centers, finance institutions, and medical fields. The company's products have obtained ISO 9001, ISO 14001, and Chinese TLC certifications.
GE Gas Power is an American manufacturer and supplier of alternative energy products and solutions established in 2015 as a business unit of the American multinational industrial company General Electric (GE). Headquartered in Schenectady, New York, the company produces steam and gas turbines, standard and heat recovery steam generators (HRSGs), heat exchangers, and power plants for various applications. They also offer after-sale installation, repair, maintenance, and upgrade services for their clients. GE Gas Power runs the world’s largest base of operating gas turbines, with over 7,000 units installed across more than 120 countries.
NextEra Energy, Inc., established in 1925, is a custom manufacturer of integrated power solutions in Juno Beach, Florida, America. The company offers solutions such as grid-scale renewables, green data centres, community solars, renewable energy credits, and carbon offsets. It also offers reshaping solutions such as linear generators, smart LED lighting, energy efficiency solutions, combined heat & power, and energy analytics. The company has received awards and recognitions such as Fortune’s World’s Most Admired Companies in 2023, Forbes Best Employers Diversity 2023, and S & P Global Platts Energy Transition Award in 2020.
Enel Green Power is a renewable energy semiconductor manufacturer, founded in 2008, headquartered in Rome, Italy. The company provides wind power, geothermal power, solar power, and hydropower through its Power Purchase Agreements (PPAs), a long-term bilateral contracts allowing commercial and industrial clients to buy renewable energy from a specific plant and receive Energy Attributes Certificates. These customizable solutions reduce emissions, costs, and protect against market price volatility. With Physical PPAs, energy is sent directly to offices through the grid. The company holds ISO 9001, ISO 14001, ISO 45001, ISO 37001, and ISO 27001 certifications.
Deye ESS Technology Co., Ltd., founded in 2020, is a manufacturer and supplier of photovoltaic power generation solutions, power plant solutions, and solar energy storage system solutions in Cixi, Ningbo, China. The company produces low voltage series products such as cobalt-free lithium iron phosphate batteries and three-phase hybrid inverters. It also produces high-voltage series products, such as hybrid inverters, solar storage charging systems, and prismatic lithium iron phosphate batteries used in energy storage, power generation, and residential and commercial plants.
Statron AG, established in 1976 and headquartered in Mägenwil, Switzerland, is an industrial-grade uninterruptible power supply and battery designer, manufacturer, and supplier. The company's products include airport ground power supply systems, modular power supply units, and semi-industrial/commercial-grade UPS systems. It also produces battery charging systems, railway battery systems, and BESS (battery energy storage systems). The company's services include mobile UPS and battery system unit rental, system commissioning, and operator training. Statron AG installed its first battery storage power plant (infrastructure-grade BESS) in 2022.
Our company’s history has been that of manufacturing battery components. Over the past 45 years, as battery components have evolved, we have accumulated the technologies necessary to manufacture them in our company. We combine these technologies, skilled people, and equipment to manufacture excellent battery components. We manufacture almost all components used for specialized battery, from the cases and lids used for battery cells to the processing of electrodes and separators used inside the cells, busbars and bolts that connect the cells, and the assembly of battery unit boxes and connectors. 45+ Years of Expertise – Trusted by leading manufacturers for comprehensive battery and electronic component solutions since 1977.
Shenzhen Kstar Science & Technology Co., Ltd., founded in 1993, is a supplier of power electronics and new energy products, including data center critical infrastructure, based in China. The company's products are widely used in government, finance, factories, communications, weather and other sectors. Its products includes data center critical infrastructure (UPS, battery, precision distribution), modular & container data center solutions, PV and ESS solutions. It has more than 3000 employees and 18 overseas branch offices in different countries, with 600 R&D engineers and experts in the inverter industry and data centers solutions.
Delmarva Power, founded in 1909 in the USA, operates as an energy service provider and distributor, supplying electricity and natural gas to customers in Delaware and Maryland. As a subsidiary of Exelon Corporation, it serves 312,000 electricity customers in Delaware, 203,000 electricity customers in Maryland, and provides natural gas to 129,000 customers in northern Delaware. The company consistently delivers clean, safe, and energy services, managing a network of 10 facilities and maintaining 160 substations to ensure the provision of essential energy services to its customers.
Sunrun was founded in 2007 in the USA and is a provider and supplier of home solar energy, battery storage, and energy services. Its solar options offer energy freedom with Sunrun solar panels, and the Brightbox home battery controls energy consumption, reduces costs, and generates clean energy. Its solar panels are just one part of the solution for the residential energy and storage industry. Paired with the Tesla Powerwall, Brightbox can help create a home energy backup, with the Tesla Powerwall battery lasting 15 years. Its home solar energy system is customized based on the unique dimensions and appearance.
National Technology and Engineering Solutions of Sandia, LLC, headquartered in the United States and established in 1945, serves as both a distributor with a base in research and development. The company's portfolio includes a range of services such as technology development, engineering solutions, and scientific research. It delivers solutions that address national security, energy, and environmental issues. Its target audience spans government agencies and academic institutions. The company turns scientific discoveries into real-world applications.
Clean Energy Reviews in Australia, founded in 2014, is a supplier of solar panels, battery storage systems, and solar inverters to consumers and solar installers. The company's products include inverters, lead acid batteries, charge controllers, solar calculators and lithium batteries used in power generation and storage, energy, and power distribution sectors. The company team formed Photonik software to develop solar design tools for solar installers in Virginia, California, Florida, Massachusetts, and Australia.
Ranking as of October 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Sustainable Capital Finance |
11.3%
|
| 2 | Accelera |
9.7%
|
| 3 | Deye ESS Technology Co., Ltd |
9.7%
|
| 4 | SUNGO Energy Technology B.V. |
6.5%
|
| 5 | Sunrun |
6.5%
|
| 6 | MK Battery |
6.5%
|
| 7 | NextEra Energy, Inc. |
6.5%
|
| 8 | Ohkita Technologies Co., Ltd. |
6.5%
|
| 9 | Jinko Solar |
4.8%
|
| 10 | Delmarva Power & Light Company |
4.8%
|
Derivation Method
The ranking is calculated based on the click share within the storage battery page as of October 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
4 | 40.0% |
|
China
|
3 | 30.0% |
|
Germany
|
2 | 20.0% |
|
Japan
|
1 | 10.0% |
824 products found - Page 6
824 products - Page 6
Nipron Co., Ltd.
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Smart Koshin series common battery
