laszlo's Profile

The less than $100 per kilowatt hour lithium-ion cell may not happen in the short term. This is what I posted here several years ago. Why not use sodium-ion batteries? A range on a full charge of 150-200 miles can be done with this battery. My EV has 160 miles range. I have been able to do well over 95% of trips during the last 2 years, and the rest of mainly very long trips using my wife's Vauxhall Corsa. Laszlo

Commented Nov 13, 2021 on GlobalData: Western weaknesses in Li-ion supply chains will slow EV adoption, show China’s dominance of the EV market at Green Car Congress

'NiZn batteries have potential uses in a wide range of applications including automotive, heavy trucking, remote telecom, renewable energy, marine and military.' Yes I agree, and I did so 40 years ago when I started monitoring its development. Let us hope it is going to be in widespread use before I pass away! Laszlo

Commented Oct 2, 2019 on US Air Force contract awarded to ZAF Energy Systems for nickel-zinc battery system at Green Car Congress

Davemart VW has already started fitting particulate filters to their gasoline engine cars (2017). https://www.autocar.co.uk/car-news/industry/volkswagen-group-fit-particulate-filters-all-petrol-engines-2017 Laszlo

Commented May 24, 2017 on Swiss team concludes that particulate filters should be mandatory for GDI engines at Green Car Congress

Is it not a double-layer ionic capacitor rather than a battery? The amount electric charge stored in the capacitor is directly proportional to the lithium metal deposited or stripped from the electrodes.

Commented Apr 25, 2017 on Goodenough and UT team report new strategy for all-solid-state Na or Li battery suitable for EVs; plating cathodes at Green Car Congress

CO2 emission might indeed be reduced, using diesel-hydrogen fuel mix. What about Oxides of Nitrogen? I would like to know the answer. Why does UK Government support this technology, unless all three emissions (particulates, Oxides of Nitrogen and Co2) are reduced significantly compared to using neat diesel fuel.

Commented Feb 2, 2017 on UK government awards ULEMCo £1.3M for hydrogen dual-fuel trials at Green Car Congress

I stick my neck out to predict that the low cost battery (less than $100/kWh) of whatever other chemistries than those of current batteries will not be forthcoming. However, extended range BEVs will enter the market place in the next 5 years with around 20 kWh battery pack sizes plus range extenders (PEM or solid oxide fuel cell/metal air battery/gas turbine/opposed piston engine) that will cost much less than a 60-80 kWh battery pack. It will provide affordable vehicles of unlimited operating ranges at very low or zero emission levels.

Commented Dec 11, 2016 on CMU study suggests difficulties in reaching targeted low price points for Li-ion batteries at Green Car Congress

Please correct me if I am wrong. Nissan's series hybrid design is a good scalable platform for future PHEV and various extended range BEV's, saving productions costs in the long run.

Commented Nov 4, 2016 on Nissan introduces series-hybrid powertrain with Note e-POWER in Japan; small pack, small engine, LEAF motor, low price at Green Car Congress

This web site https://www.theengineer.co.uk/delta-motorsport-launches-gas-turbine-range-extender/ might answer some of your questions. Surely, cost must be less than $3000 in volume production to be worth considering as a range extender.

Commented Sep 19, 2016 on Delta Motorsport introduces Micro Turbine Range Extender at Green Car Congress

Davemart Slide 14 of http://fuelcellseminar.com/wp-content/uploads/Mukerjee-Ceres-Powers-Steel-Cell-Technology.pdf presentation. See power density roadmap graph and read off approx. W/l values. Laszlo

Commented Aug 8, 2016 on Nissan unveils first Solid-Oxide Fuel Cell vehicle; fueled by ethanol, 600 km range at Green Car Congress

I meant 375 W/l! Laszlo

Commented Aug 7, 2016 on Nissan unveils first Solid-Oxide Fuel Cell vehicle; fueled by ethanol, 600 km range at Green Car Congress

Davemart Ceres is aiming for power density of SOF 375 Wh/l without cooling system. Current power density is 120 W/l. It is a non-starter range extender for cars, if > 25 kW output is required (e.g. BMW i3). Laszlo

Commented Aug 7, 2016 on Nissan unveils first Solid-Oxide Fuel Cell vehicle; fueled by ethanol, 600 km range at Green Car Congress

Who paid for this research? Very, very poor job!

Commented Apr 19, 2016 on Study finds total PM10 emissions from EVs equal to those of modern ICEVs; role of weight and non-exhaust PM at Green Car Congress

The plant had $600 million investment in 2013 (Nissan and UK Government) to produce 60,000 battery packs per annum. It has actually produced a fraction of this in three years! The additional investment is merely a statement from Nissan that it will stay in the UK and hopefully increase and upgrade its battery production in the next few years.

Commented Jan 22, 2016 on Nissan announces UK production for future generation EV batteries at Green Car Congress

..'only 16.7% of the energy consumed for the reported water electrolysis..' This statement obviously needs clarification!

Commented Jan 9, 2016 on New efficient electrolysis process for direct hydrogen production from biomass; 16.7% of energy required for water electrolysis at Green Car Congress

This R&D work confirms my view that LG Chem is very well placed for providing mass produced energy dense batteries for long range BEV-s. Perhaps LG Chem could well be the leading manufacturer in 2016?

Commented Jan 4, 2016 on New prelithiation technique for silicon monoxide anodes for high-performance batteries; compatible with current roll-to-roll manufacturing at Green Car Congress

May I quote from prietobattery web site:- 'Today, we are on the threshold of a major breakthrough. As a result of years of research, experimentation, and perseverance, we believe the Prieto Battery will be commercialized within the next several years.' Several years meaning at least 5 years. Laszlo

Commented Sep 16, 2015 on Bosch highlighting solid-state Li-ion cells; double current energy density, production-ready in 5 years at Green Car Congress

Please can we have comprehensive published cell test results instead of the hype based on ‘company’s internal analysis’.

Commented Jul 8, 2015 on BioSolar extends agreement with UCSB for further development of novel polymer cathode; projecting up to 459 Wh/kg and $54/kWh for Li-ion cells at Green Car Congress

Here is a informative article on the new production process for LIB. http://www.greentechmedia.com/articles/read/24m-unveils-the-reinvented-lithium-ion-battery

Commented Jun 24, 2015 on 24M emerges from stealth mode with new semi-solid Li-ion cell; <$100/kWh by 2020 at Green Car Congress

I do not have any figures on the cost and the efficiency of this tortuous indirect route all the way from renewable electricity to power the wheel of internal combustion engine vehicle. For the sake of preserving it and its infrastructure for eternity? Why not chopping down trees to make charcoal to drive steam locomotives when the simple answer is to develop a powertrain that best suit the renewable fuels of the future.

Commented Jun 12, 2015 on “Energiewende” in a tank; Audi e-fuels targeting carbon-neutral driving with synthetic fuels from renewables, H2O and CO2; Swiss policy test case at Green Car Congress

LUX's view on the grid application and home storage is that these will be Li ion doeas not make much sense to me. Grid application by Eos using other battery technology is already @ $160/kWh, http://www.businesswire.com/news/home/20150519006387/en/Eos-Energy-Storage-Raises-23-Million-Support#.VVxLTrlVikr

Commented May 20, 2015 on Lux Research: Li-ion battery costs to drop to as low as $172/kWh by 2025; big boost for EVs in mid- to late 2020s at Green Car Congress

An explanation of how this battery would work and what it would be used for is desirable. I presume it is a rechargeable battery that would need cathode renewal during each charge cycle. This battery would need a continuous supply of brine (cathode), presumably pumped from sea or maintained in constant contact with sea water or pumped from a brine storage tank that would also need regular renewing. What about the chlorine gas? It is a highly reactive (oxidising agent) that would need careful storage or disposal after some treatment. laszlo

Commented Nov 25, 2014 on Researchers develop rechargeable hybrid-seawater fuel cell; highly energy density, stable cycling at Green Car Congress

I do not share the scepticism about not being able to charge electric vehicles in heavily built–up areas by apartment dwellers. Those of you old enough might remember the concept of biberonnage charging (Victor Wouk and others in the 1980s). A few 15-20 minutes charging opportunities at supermarkets, restaurants, public and work car parks etc. could easily provide 100 miles daily driving range for these vehicles without the need for dedicated charging points. The only proviso is to have sufficient number of well distributed fast charging points at these locations to meet the demand.

Commented Nov 20, 2014 on Volkswagen Group shows 3 hydrogen fuel cell concepts at LA Show: Audi A7 Sportback h-tron; Golf Sportwagen HyMotion; Passat HyMotion at Green Car Congress

Davemart This is a heat engine, its efficiency must limited by the efficiency of the Carnot engine. No engine operating between two heat reservoirs can be more efficient than a Carnot engine operating between those same reservoirs. A practical efficiency limit of around 45% is about right. Laszlo

Commented Nov 19, 2014 on LiquidPiston unveils 70cc rotary gasoline engine prototype embodying HEHC; power dense, low-vibration at Green Car Congress

Roger, The proposed Tesla X PHEV would end up with a much smaller sized battery pack, using the Panasonic 18650 format cells, currently installed in Tesla S. It would inevitable degrade vehicle performance in the pure electric drive mode. Tesla S has an outstanding performance and range thank to a very large (c. 400 kg) pack as well as very good but not miraculous energy and power density performance at cell level. laszlo

Commented Oct 29, 2014 on First look at all-new Voltec propulsion system for 2G Volt; “the only thing in common is a shipping cap” at Green Car Congress