Sodium-nickel-chLoride Battery

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Sodium-nickel-chLoride Battery ( sodium-nickel-chloride-battery )

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Sodium-nickeL-chLoride Battery eLectrochemicaL energy Storage 1. Technical description A. Physical principles Na/NiCl2 secondary battery is an energy storage system based on electrochemical charge/discharge reactions that occur between a positive electrode (cathode) consisting mainly of nickel (Ni) and sodium chloride (NaCl) and a negative electrode (anode) that is typically made of sodium (Na). The electrodes are separated by a beta-alumina ceramic wall that is conductive for sodium ions but an isolator for electrons. This beta-alumina ceramic acts as an electrolyte and enables the conduction of sodium ions between the anode and the cathode of the cells. The battery temperature is kept between 270° C and 350° C to keep the electrodes in a molten state, i.e. independent heaters are part of the battery system. B. Important components The main components are the following: Elementary cell composed of electrodes, electrolyte and separator Modules Battery systems composed of a large assembling of modules and of a control system Power Conversion System (PCS) C. Key performance data Power range Several MW Energy range 4kWh Up to several MWh Discharge time from 2h to several hours Cycle life 4500 cycles Life duration <15 years Reaction time Some millisec Efficiency 85 - 95 % (*) Energy (power) density 100 - 120 Wh/kg CAPEX: energy 550 – 750 € / kWh CAPEX: power 150 – 1000 € / kW 2NaCI + Ni NiCL + 2Na Illustration: Charging principle of NaNiCl2 2 Na AI CI Liquid electrolyte β’’ - AI O 23 Ceramic electrolyte Capillary gap Wick Load Discharge (*) Including auxiliary loads D. Design variants (non exhausitive) Different battery systems are possible according to the size, ranging from a case up to a container. Energy Storage Technology Descriptions - EASE - European Associaton for Storage of Energy Avenue Lacombé 59/8 - BE-1030 Brussels - tel: +32 02.743.29.82 - @EASE_ES - info@ease-storage.eu - www.ease-storage.eu

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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.

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