Nissan develops "world's best" next-gen fuel cell stack

Nissan has just revealed its next-generation fuel cell stack, one that offers 2.5 times greater power density than the version the automaker created in 2005. Two-and-a-half times may not mean much to most readers, so how about this: Nissan says the fuel cell power density of 2.5 kW per liter is the "world's best" among automakers.
The Japanese automaker is in the process of developing production-viable fuel-cell vehicles and says much of its remaining work rests on breakthroughs such as this next-gen fuel cell. The new fuel cell stack features an improved membrane electrode assembly, which helped pave the way for the unit's boosted power density. What's more, Nissan's next-gen fuel cell uses one-fourth the amount of platinum compared to the now-dated 2005 stack, which enables Nissan to construct the power-dense unit for one-sixth the cost of the old version.

Nissan reportedly aims to launch a fuel cell passenger vehicle sometime after 2015 at a price of less than ten million yen ($130,170 U.S. at today's exchange rate).
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Nissan Develops Next Generation Fuel Cell Stack

- World's best* power density realizes more than 50% size reduction -

YOKOHAMA, Japan (October 13, 2011) - Nissan Motor Co., Ltd. today released its Next Generation Fuel Cell Stack (2011 Model) for Fuel Cell Electric Vehicles (FCEV). The latest technology development is part of the company's continuing efforts towards the realization of a Zero Emission society.

Through improvements to the MEA (Membrane Electrode Assembly) and the separator flow path, which make up the structure of Fuel Cell, Nissan significantly improved the power density of Fuel Cell Stack to 2.5 times greater than its 2005 model and realized a world's best* 2.5 kW per liter.

Furthermore, molding the supporting frame of the MEA integrally with the MEA enabled stable, single-row lamination of the Fuel Cell, thereby significantly reducing its overall size by more than half compared to conventional models. Additionally, compared with the 2005 model, both the usage of platinum and parts variation has been reduced to one quarter, thereby reducing cost of the Next Generation Fuel Cell Stack to one-sixth of the 2005 model.

Nissan continues to work on the development of practical applications of Fuel Cell Electric Vehicles to realize a Zero Emission society.

* Among auto manufacturers

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