Yes too bad we can’t readily access the article as it might be quite interesting and enlightening. Any development which helps facilitate EV adoption has to be a positive step and like each of you I offer my enthusiastic support, but …
Perhaps the article has a lot more detail that answers the “but”, however there are some substantial questions about this LG Chem battery that immediately spring to mind. The most salient being what is the energy density and hence battery capacity as well as what is the form factor? Most of the non-tesla BEVs seem to have an energy consumption of about 260 Watts/mile which would require 52KWhr of accessible battery capacity to provide a 200 mile range. Even if we were optimistic and said energy consumption will average only 230W/mile highway, such a battery would still have to provide 46 KWh of accessible capacity. If the form factor is such that this battery is sufficiently close in volume and weight to enable it’s installation into the current FFE chassis, either capacity number is a huge technical breakthrough (about 2.5 times current energy densities). Without adopting a skateboard architecture and vehicle wheelbase/track width similar to Tesla’s Model S this is the level of energy density breakthrough that is required to make the FFE, Leaf, MB B-Class ED, Kia Soul EV etc into 200 mile BEVs. Technical breakthroughs that can offer an advantage of 2-3 times the current practise are rare and usually very expensive for the early adopters! I’d really like to see it but engineering pragmatism leaves me quite suspect of such claims.
Assuming that the energy density and form factors can be solved in the alleged 2-3 year timeframe, once such batteries become available they would immediately renders the FFE a 200 mile range BEV and invoke the next big issue which is fast recharging. A reliable 200 mile battery range in the current FFE, for arguments sake, would entice people to undertake intercity travel which is only practical when fast DC recharging is available. The only current options for that are the CHAdeMO and Tesla Supercharger networks. Right now CHAdeMO is quite localized in the West and there seems to be little activity to expand that network significantly within the foreseeable future. Alternatively Tesla’s supercharger network is growing rapidly but it is, to date, manufacturer exclusive! The recent release of Tesla’s patents could allow other manufacturers access to that network but so far none have indicated a desire to avail themselves of the opportunity, be it for technical or business model reasons. As far as I see it this is another of the “big issues” that need to be resolved before BEVs gain widespread acceptance. The fledgling BEV industry cannot afford becoming embroiled in a charging standards war analagous to what was seen, albeit on a much smaller value scale, in the Beta-VHS wars and yet that seems to be the path on which a number of manufactures are travelling. Even beyond the basic fast charging networks, between Supercharging, CHAdeMO and the “FrankenPlug” (combination SAE J1772 and DC fast Charging) the industry already has 3 power-to-vehicle interface standards and the likelihood of each being available at every recharging station is zero. None of this facilitates easy, worry free intercity travel in a BEV and let’s be honest, few people will give up their ICE if BEV travel will involve not only the inconvenience of trip planning because of range limitations but checking each prospective charging station for interface compatibility.
So while on the surface of it this LG Chem announcement is positive, there are many other factors yet to be resolved before we can say BEVs present a viable, let alone convenient, alternative to ICE for the vast majority of the driving public.
Bring on the battery energy density improvements and cost reductions but also let’s get together to develop a coherent and manufacturer-integrated infrastructure.
Thanks and Cheers
Carl