MGX Minerals Announces Successful Generation of Dendritic Zinc Using Linear Regeneration Module; Zinc Regeneration Subsystem Development Completed

VANCOUVER, BRITISH COLUMBIA, CANADA -- May 13, 2019 -- InvestorsHub NewsWire -- MGX Minerals Inc. ("MGX" or the "Company") (CSE: XMG / OTCQB: MGXMF / FSE: 1MG) announces that its wholly owned subsidiary MGX Renewables Inc. ("MGXR"), a leader in the development of zinc-air flow batteries for applications requiring long duration, high capacity storage, has successfully generated dendritic zinc fuel using its new "linear" regenerator module.

The fuel regeneration process requires application of an electric current across the opposing electrodes of each regeneration cell. Particles of zinc are "grown" on the cathode and oxygen is evolved on the anode. The zinc particles are periodically washed off the cathode using the same electrolyte in which they were produced and then stored in the fuel tank. The oxygen is then released into the atmosphere. A flexible number of regeneration cells are arranged in series electrically to increase the capacity of the complete regeneration module.

Successful operation of the regeneration module represents the culmination of development of the entire ZRS. This includes the mechanism for generating the flow of electrolyte to wash the zinc particles from the electrodes, the mechanism for collecting and transferring the particles so produced, and the control system that manages the sequencing of all regeneration functions. The control system is constructed from a custom microprocessor control board plus proprietary embedded software. All of this functionality has now been successfully integrated to enable the production of the zinc particulate fuel.

The operation and support of the regeneration module is the prime function of the Zinc Regeneration Subsystem (ZRS)- one of the three separately configurable subsystems of MGXR's unique zinc-air flow battery. The two other subsystems are the Fuel Storage Subsystem and the Power Generation Subsystem.

Figure 1. ZRS-4500 Zinc Regeneration Module

MGXR Energy Storage System

The MGXR ESS is a modular Energy Storage System designed to deliver power in the range 20 kW - 50MW and storage in the range of 120Kwh - 1GWh over extended periods of time. With the advantage of rechargeable zinc-air fuel cell technology, the system can be configured to support a wide range of discharge power, recharge power and duty cycle requirements. Since the energy storage capacity of the system is determined only by the size of the fuel tank, a very cost-effective scalable solution now exists as an alternative to the linear power storage ratio available in a lithium-ion battery.

Li-ion versus Zinc-Air

The fundamental limitation of Li-ion is a linear power to storage ratio severely limiting flexibility and vastly increasing cost of storage even when limited output wattage is required. This gives an overwhelming advantage to MGXR's zinc-air fuel cell technology in high capacity, long duration commercial and industrial as well as grid scale applications. In addition to containing no expensive commodities such as lithium or cobalt, the zinc air fuel cell battery has a much lower cost of storage reflecting a paradigm shift essentially eliminating the traditional linear fixed power / storage ratio and allowing for scalable power with highly flexible storage capacity at essentially any ratio, limited only by the physical parameters of the fluidized zinc storage tank(s).

The zinc-air fuel cell battery has completely decoupled power and storage subsystems with ratios of 1:5 up to 1:20 and conceptually 1:100, giving significant advantage in any scenario requiring more than a few hours of storage. This fills the need in both renewables storage as well as industry and grid scale opportunities in power acquisition and distribution along with the inherent benefits of clean steady power; with the potential to acquire power not just overnight and discharge on demand during the day but to take advantage of much larger swings in power demand and supply such as weekly, monthly, and potentially seasonal fluctuation.

Charging is also flexible and is scaled to match discharge but is a separate subsystem that can be scaled to match supply markets and timeframe of power availability whether long or short windows for power acquisition. This creates large scale arbitrage and cost savings opportunities as well as a policy level opportunity to enhance localized power infrastructure without the need to build new power plants or transmission lines.

Figure 2. MGXR modular Energy Storage System (ESS)

Technology

The MGXR ESS is based upon unique patented zinc-air fuel cell technology. Energy is stored in the form of zinc particles, similar in size to grains of sand. When the system is delivering power, the zinc particles are combined with oxygen drawn from the surrounding air. When the system is recharging, zinc particles are regenerated, and oxygen is returned to the surrounding air.

Applications

The flexibility of the MGXR ESS enables it to service a wide range of applications. Typical examples include:

Storage and smoothing current from renewable energy sources such as wind and solar
Commercial, industrial backup replacing diesel generators
Industrial scale on demand power for peak shaving or standby
Grid scale energy storage for energy trading and arbitrage

Architecture

The MGXR ESS is designed according to a modular architecture that enables a wide variety of system configurations to be created from a small number of common subsystems. Each subsystem implements a single element of the technology:

The Zinc Regeneration Subsystem (ZRS) provides the recharging function
The Fuel Storage Subsystem (FSS) provides the energy storage function
The Power Generation Subsystem (PGS) provides the discharging function

About MGX Renewables

MGX Renewables has developed a patented zinc-air flow battery that efficiently stores energy in the form of zinc particles and contains none of the traditional high cost battery commodities such as lithium, vanadium or cobalt. The technology allows for low cost mass storage of energy and can be deployed into a wide range of applications scalable energy storage applications. The zinc-air flow-battery is differentiated from other battery technologies by its ability to decouple the relationship between energy (kWh) and power (kW), by the very low cost of its zinc energy storage medium, and by the inherent safety of its chemistry.

Unlike conventional batteries such as lithium-ion, which have a fixed energy/power ratio, the technology uses a fuel tank system that offers flexible energy storage to power ratios and scalability. The storage capacity is directly tied to the size of the fuel tank and the quantity of recharged zinc fuel, making low cost scalability a major advantage of the flow battery system. In addition, a further major advantage of the zinc-air flow battery is the ability to charge and discharge simultaneously and at different maximum charge or discharge rates since each of the charge and discharge circuits is separate and independent. Other types of standard and flow batteries are limited to a maximum charge and discharge by the total number of cells as there is no separation of the charge, discharge and storage components. For more information visit www.mgxrenewables.com.

About MGX Minerals

MGX Minerals is a diversified Canadian resource and technology company with interests in global advanced material, energy, and water assets. Learn more at www.mgxminerals.com.

Contact Information

Jared Lazerson
President and CEO
Telephone: 1.604.681.7735
Web: www.mgxminerals.com

Neither the Canadian Securities Exchange nor its Regulation Services Provider (as that term is defined in the policies of the Canadian Securities Exchange) accepts responsibility for the adequacy or accuracy of this release.

Forward-Looking Statements

This press release contains forward-looking information or forward-looking statements (collectively "forward-looking information") within the meaning of applicable securities laws. Forward-looking information is typically identified by words such as: "believe", "expect", "anticipate", "intend", "estimate", "potentially" and similar expressions, or are those, which, by their nature, refer to future events. The Company cautions investors that any forward-looking information provided by the Company is not a guarantee of future results or performance, and that actual results may differ materially from those in forward-looking information as a result of various factors. The reader is referred to the Company's public filings for a more complete discussion of such risk factors and their potential effects which may be accessed through the Company's profile on SEDAR at www.sedar.com.

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