GRA
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Joined: Mon Sep 19, 2011 1:49 pm
Location: East side of San Francisco Bay

Official Mercedes GLC F-Cell thread

Tue Sep 05, 2017 5:16 pm

Via GCC:
Mercedes-Benz to showcase pre-production version of coming GLC F-Cell fuel cell PHEV at IAA
http://www.greencarcongress.com/2017/09/20170905-glcfcell.html

. . .The GLC F-CELL features a ~9 kWh lithium-ion battery pack combined with a new fuel cell stack. Around 30% more compact than previous stacks, it can be fully housed in the engine compartment for the first time. Too, the cost of the technology has been slashed due largely to a 90% reduction in the amount of platinum used in the stack. The combination of fuel cell and battery system—along with a further developed intelligent operating strategy—will offer a combined range of around 500 km (311 miles) in the NEDC. . . .

500 km/311 miles NEDC strikes me as too low given the competition. 500/311 EPA or WLTP would be okay.
Guy [I have lots of experience designing/selling off-grid AE systems, some using EVs but don't own one. Local trips are by foot, bike and/or rapid transit].

The 'best' is the enemy of 'good enough'. Copper shot, not Silver bullets.

GRA
Posts: 8522
Joined: Mon Sep 19, 2011 1:49 pm
Location: East side of San Francisco Bay

Re: Official Mercedes GLC F-Cell thread

Tue Sep 12, 2017 2:54 pm

Via GCC:
Mercedes-Benz GLC F-CELL goes into preproduction; fuel-cell/battery plug-in hybrid powertrain
http://www.greencarcongress.com/2017/09/20170912-glcfcell.html

Details of the system are in the article (I'm getting an SQL error trying to copy it), but the 271.5 mile NEDC range on H2 seems a bit short. At least in Germany the density of the planned H2 station deployment will make that a minor issue - other areas with lower density of stations will be more problematic. it's certainly less inconvenient for longer trips than the i3 REx, if the H2 stations are available where needed.

Further articles:
Mercedes-Benz GLC F-Cell EQ Power plug-in hydrogen crossover launches at Frankfurt
http://www.greencarreports.com/news/1112630_mercedes-benz-glc-f-cell-eq-power-plug-in-hydrogen-crossover-launches-at-frankfurt

Mercedes GLC F-Cell: Hydrogen Fuel Meets Plug-In Power
http://insideevs.com/mercedes-glc-f-cell-hydrogen-fuel-meets-plug-in-power/
Guy [I have lots of experience designing/selling off-grid AE systems, some using EVs but don't own one. Local trips are by foot, bike and/or rapid transit].

The 'best' is the enemy of 'good enough'. Copper shot, not Silver bullets.

GRA
Posts: 8522
Joined: Mon Sep 19, 2011 1:49 pm
Location: East side of San Francisco Bay

Re: Official Mercedes GLC F-Cell thread

Wed Mar 21, 2018 5:55 pm

Via GCC:
Producing the Mercedes-Benz GLC F-CELL fuel-cell SUV
http://www.greencarcongress.com/2018/03/20180321-glcfcell.html
Mainly details the production process for the stack, but also mentions that the H2 capacity is 4.4 kg in two tanks, which again strikes me as a bit low albeit less of an issue given rapid refueling, and the battery pack is 13.8kWh total, 9.3kWh usable. The article also says:

    Further development work is particularly necessary to reduce material costs: Factors in this include the further reduction of sizes and components, and also of the proportion of expensive materials. If we compare our present system with that of the B-Class F-CELL, we have already achieved a great deal—alone by reducing the platinum content by 90%. But we need to go further. Process optimizations in production will also help to lower costs – but this is more a matter of economies of scale.

    —Prof. Dr. Christian Mohrdieck, head of Fuel Cell Drive Development and General Manager of NuCellSys. . . .

The article also mentions that they've increased output by 40% and reduced size by 30% so the stack and related components all fit under the hood, as with the current Clarity. I think we're still at least one and probably two generations of fuel cells away from comparable cost with ICEs.
Guy [I have lots of experience designing/selling off-grid AE systems, some using EVs but don't own one. Local trips are by foot, bike and/or rapid transit].

The 'best' is the enemy of 'good enough'. Copper shot, not Silver bullets.

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