Effective and accurate diagnosis of fuel cell health status is crucial for ensuring the stable operation of fuel cell stacks. Among various parameters, high-frequency impedance serves as a critical indicator for assessing fuel cell state and health conditions. However, its online testing is prohibitively complex and costly. This paper employs a deep sparse auto-encoding network for the prediction and classification of high-frequency impedance in fuel cells, achieving metric of accuracy rate above 92\%. The network is further deployed on an FPGA, attaining a hardware-based recognition rate almost 90\%.

To face the dependency on fossil fuels and limit carbon emissions, fuel cells are a very promising technology and appear to be a key candidate to tackle the increase of the energy demand and promote the energy transition. To meet future needs for both transport and stationary applications, the time to market of fuel cell stacks must be drastically reduced. Here, a new concept to shorten their development time by introducing a disruptive and highefficiency data augmentation approach based on artificial intelligence is presented. Our results allow reducing the testing time before introducing a product on the market from a thousand to a few hours. The innovative concept proposed here can support engineering and research tasks during the fuel cell development process to achieve decreased development costs alongside a reduced time to market.

Honda's revamped Clarity fuel cell sedan is a technological marvel, but hydrogen fuel stations remain scarce. The dogged persistence Honda has shown in its decades-long quest to perfect hydrogen as a zero-emission replacement for gasoline can be seen as quixotic or futile. But the quirky company that makes motorcycles, lawnmowers, jets, humanoid robots, boat engines and a few million cars soldiers on, along with GM, Toyota and Hyundai, in the face of haphazard government support for hydrogen, minimal consumer awareness and withering critics like Elon Musk, a tireless advocate for Tesla's battery-powered cars. All the sweat equity Honda engineers have invested in its fuel cell program, year after year, has yielded a remarkable new version of the Clarity sedan, the most compelling argument yet of the potential of hydrogen cars still hold. Yet for all its technological sophistication, Clarity's fate remains to a skinny network of California hydrogen stations that's expanding slowly, with new headwinds from a Trump Administration that's shown no willingness to aid carbon-cutting technologies.