Gordon Stein, CFO of CleanTech Lithium, explains why CTL acquired the 23 Laguna Verde licenses. Watch the video here.
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BB2, ah right, with you now :)
What I find really interesting is that we are specifically patenting a system that includes an EV Charger and Ammonia Cracker, plus cover for other options for output and fuel input. To me this is like manufacturing a car engine, but applying for a patent that includes the rest of the car! If granted, no other company could build an integrated FC EV Charger with Ammonia/Reformer built in. I guess the Patent Attorneys have searched and not found any Patents for this, so AFC can go ahead with the application and get there first. It could be a very valuable piece of IP in a few years!
BB2, the only mention of 'perforated' or 'through pores' in the Patent that I can see when I search the page is this bit:
"WO/2011/015842 discloses a liquid electrolyte fuel cell comprising an electrolyte volume having a removable electrode on either side. Each electrode comprises a sheet of electrically conductive material including through-pores and having a peripheral margin without through-pores. WO 2012/104599 discloses an electrode which includes a perforated metal sheet, and a gas-permeable layer of fibrous or particulate electrically conductive material bonded onto the metal sheet and provided with a catalytic material at its outer surface."
That bit is just a reference back to the previous AFC Patent of 2011, as background information. Are you referring to something else?
Thanks Haggis another great piece of detective work , you will be handsomely rewarded £££
Hold tight for the next week everyone
From the Patent application it appears that they have also increased performance, efficiency and durability.
From the 'background' section:
"It may also be desirable to have enhanced efficiency of electric power generation."
From the description:
"Some example electrochemical cell arrangements may have the aspect of generating less residual heat, and/or improved uniformity of heat generation within reactant gas volumes and the temperatures over the electrodes in use, and enhanced efficiency of conversion between chemical and electrical energy, and potentially greater durability of the electrochemical cell."
"In some example fuel cells, a large percentage of the heat generated may be absorbed by the electrolyte liquid; for example, approximately 80% - 90% of the heat generated may be absorbed by KOH electrolyte. Improved uniformity of reactant gas flow rate may result in increased uniformity of temperature of electrolyte fluid contained within the electrolyte volume, when in use. While wishing not to be bound by a particular theory, liquid water produced during operation of a fuel cell may evaporate in response to absorbing generated heat, which may improve the performance of some example fuel cells."
"While wishing not to be bound by a particular theory, uniform generation of reaction heat may result in improved operational efficiency of electrochemical cells, particularly but not exclusively fuel cells, at least over some range of operating conditions. In general, electrical performance may be better when the operating voltage is not too low, at least over a range of voltages; for example, the electrochemical performance per cell is more electrically efficient at a high cell voltage of 0.8V rather than a low voltage of 0.3V."
"While wishing not to be bound by a particular theory, increased uniformity of the flow rate of electrolytic fluid may improve the uniformity of temperature throughout the electrolyte volume, potentially reducing the instances and magnitude of thermal spikes (‘hot spots’) within electrodes and the electrolytic fluids."
"In some example arrangements, the temperature of reactant gas at a respective outlet, and/or of electrodes, may be no more than about 80°C (for example, about 50°C to about 80°C)."
This is a very interesting development!!
"Viewed from a fourth aspect, there is provided a power supply system for charging or powering an electrical device, comprising an example disclosed electrochemical stack according to the third aspect, and a power supply control system electrically connected to the electrochemical stack and having a connector mechanism for allowing the power supply control system to be electrically connected to an electrical device, operable to charge or power the electrical device. For example, the power supply system may be configured for charging the battery of an electric vehicle (EV); or for an uninterrupted power supply (UPS), operable to power an electrical apparatus; or for generating power for a cellular telecommunications transmitter; or for some other stationary power system. In some example arrangements, the power supply system may comprise an ammonia cracker system for processing ammonia to produce hydrogen gas; and a fuel conveyor channel connecting the ammonia cracker system to the electrochemical stack, operable to convey the hydrogen gas from the ammonia cracker system to the electrochemical stack. The fuel gas may consist predominantly of hydrogen, where 99.999% is hydrogen. Alternatively, the percentage of hydrogen might be 99.95%, or 99%. It is also envisaged that the fuel could be -75% hydrogen, -25% nitrogen with up to 1 ,000 parts per million of ammonia. The hydrogen may be supplied by an ammonia cracker system, as mentioned above, or it may be supplied by a steam methane reformer, which can utilise methane or biomethane. The hydrogen may also be supplied by an electrolyser. Hydrogen produced using an ammonia cracker system might have a composition of -75% hydrogen, -25% nitrogen and 0 to -1 ,000 parts per million of residual ammonia."
And in the Claims:
15. A power supply system (600) for charging or powering an electrical device, comprising an electrochemical stack (500) as claimed in claim 14, and a power supply control system (610) electrically connected to the electrochemical stack (500), and having a connector mechanism (612), operable to electrically connect the power supply control system (610) to an electrical device.
16. A power supply system (600) as claimed in claim 15, comprising an ammonia cracker system (620), for processing ammonia to produce hydrogen gas; and a fuel conveyor channel (622) connecting the ammonia cracker system (620) to the electrochemical stack (500), operable to convey the hydrogen gas from the ammonia cracker system (620) to the electrochemical stack (500).
17. A power supply system (600) as claimed in claim 15 or 16, configured to charge an electric vehicle.
https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2021111137&tab=PCTDESCRIPTION