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Is saltwater battery technology the New Non-Plus Ultra on the Storage Market? No, it depends on the field of application. But if the weaknesses of saltwater technology (space requirements and C-rate) do not play a critical role, the saltwater electricity storage technology offers a cost-effective alternative. Saltwater energy storage systems also score points alongside the core advantages in terms of safety, freedom from maintenance and environmental friendliness. Applying saltwater batteries From theory to the practical application. How can saltwater battery be deployed in practical projects in the field? In general saltwater batteries are available on a 12 volts, 24 volts and 48 volts basis. This means the battery inverter needs to comply to those nominal voltages. Besides the nominal voltage the battery has a certain charge profile beginning at 37 volts at the lower end (the battery is empty) up to 60 volts (battery is fully charged). The 60 volts is also the cut-off voltage. The inverter needs to be set in accordance with those voltage ranges, similar to lead batteries’ charge profile. As long as the battery inverter can work in those ranges, saltwater batteries can be applied easily and are connected as common lead batteries are. Naturally you will not do big electrical energy storage project (e.g. in the Megawatt area) on a 48 volt DC basis. In those cases, for bigger storage application the voltage can be increased by serially wiring the batteries. Bigger installations are exclusively executed with a Battery Management System (BMS), which ensures that the multiple batteries are balanced, making bigger systems more robust. To ease the installation connection boxes are available, which connect the batteries via a central board secured with fuses to the battery inverter. The connection box ensures an easy installation for installers and a secured connection, in case a battery would defect. It is common knowledge and highlighted in this paper that temperature is an important factor for battery performance. To enable online monitoring and offline management the saltwater battery has an intelligent Energy Management System (EMS) as an integrated option. Besides temperature control and energy flow management the EMS has the capability to easy integrate multiple energy sources (Solar/Photovoltaic, Wind turbines, Diesel Generators, Grid etc. ) on the one hand side and enables a smart usage of surplus energy (power-to heat, E-Charging, heat-pumps or other variables consumers). On the load side the EMS enables peak-shifting to ensure a more balanced load if variable consumers are in use. Summary – new generation saltwater battery Although still fairly unknown in the market, saltwater batteries start to position themselves as the third battery technology – besides lithium and lead – in the market. Compared to the multiple new battery technologies, which look promising and are researched on, saltwater electrical energy storage has proved its practical readiness for years in thousands of applications. Saltwater batteries are certainly not a perfect fit for every storage market segment as the C-Rate limitation with 0,5C and the energy density make them unfit for certain markets (e.g. E-mobility). However saltwater batteries prove to be a good alternative, where a robust and reliable electrical energy storage solution is needed.PDF Image | new generation of saltwater batteries
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Product and Development Focus for Salgenx
Redox Flow Battery Technology: With the advent of the new USA tax credits for producing and selling batteries ($35/kW) we are focussing on a simple flow battery using shipping containers as the modular electrolyte storage units with tax credits up to $140,000 per system. Our main focus is on the salt battery. This battery can be used for both thermal and electrical storage applications. We call it the Cogeneration Battery or Cogen Battery. One project is converting salt (brine) based water conditioners to simultaneously produce power. In addition, there are many opportunities to extract Lithium from brine (salt lakes, groundwater, and producer water).Salt water or brine are huge sources for lithium. Most of the worlds lithium is acquired from a brine source. It's even in seawater in a low concentration. Brine is also a byproduct of huge powerplants, which can now use that as an electrolyte and a huge flow battery (which allows storage at the source).We welcome any business and equipment inquiries, as well as licensing our flow battery manufacturing.CONTACT TEL: 608-238-6001 Email: greg@salgenx.com (Standard Web Page)