On August 27, Sinohytec's "Graphite Plate Fuel Cell Strong Low Temperature Resistance and Rapid Self-starting Technology" won the Global New Energy Vehicle Innovation Technology Award. The award is the first selection in the field of global new energy vehicle technology, aiming at accurately grasping the latest progress in the research and application of cutting-edge technology and innovative technology of global new energy vehicles, promoting cooperation and exchanges in key technologies at home and abroad, and guiding breakthroughs in core technologies of new energy vehicles. Tesla (Shanghai) Co., Ltd., BYD, BMW (China) and other eight enterprises were also awarded the Innovation Technology Award.
As a state-level high-tech enterprise, Sinohytec focuses on the research and development of fuel cell power system and technological breakthroughs. Based on the "hydrogen injection + injection" hydrogen circulation system architecture, the graphite plate fuel cell strong low temperature resistant rapid self-starting technology eliminates the traditional high power consumption components-hydrogen circulating pump, simplifies the structure, reduces the risk of icing, reduces the power consumption of BOP system, and improves the energy efficiency of fuel cell. By using stack polarization control strategy and shutdown purge adaptive control technology, the dry and wet state of membrane and catalyst layer can be accurately controlled, excessive dry and wet cycle can be avoided, the residual water state between chips can be kept consistent, and the low temperature start-up performance can be improved.A graphite plate fuel cell stack and system integrated with AC impedance function are established to adjust the water content in the stack in low temperature environment in time to ensure the reliability of the low-temperature start-up function of the system.
The above technological innovations have greatly improved the low-temperature performance of fuel cells. The new generation of fuel cell products based on this technology can achieve rated power output in 126.5s at a low temperature of -40 ℃, and the performance indicators are in the leading position in the world. The 4.5T hydrogen fuel cell refrigerated truck equipped with this technology completed the field low temperature verification during the Olympic Winter Games, and the series of vehicles began to be put into use in batches in March this year, effectively accelerating the application and promotion of hydrogen fuel cell vehicles and the construction of Beijing-Tianjin-Hebei hydrogen fuel cell vehicle demonstration city group.
The graphite plate fuel cell strong low-temperature resistant rapid self-starting technology provides technical support for the further development of the graphite plate fuel cell technology route, improves the environmental adaptability of fuel cell products in the northern cold areas, and lays a good foundation for the application of fuel cell technology in broader fields such as unmanned aerial vehicles, submarines and ships.
8月27日,亿华通《石墨极板燃料电池强耐低温快速自启动技术》斩获全球新能源汽车创新技术奖。该奖项是首个面向全球新能源汽车技术领域的评选,旨在准确把握全球新能源汽车在前沿技术研究及创新技术应用方面最新进展,促进国内外关键技术合作与交流,引导新能源汽车核心技术加速突破。特斯拉(上海)有限公司、比亚迪、宝马(中国)等八家企业亦分获创新技术奖。
作为国家级高新技术企业,亿华通专注于燃料电池动力系统研发及技术突破。“石墨极板燃料电池强耐低温快速自启动技术” 基于 “氢喷+引射”氢循环系统架构,省去传统高功耗部件-氢气循环泵,简化结构、减少结冰风险,降低BOP系统功耗,提升了燃料电池能效;运用电堆极化控制策略和停机吹扫自适应控制技术,精准控制膜及催化剂层的干湿状态,避免过度干湿循环、保持单片间残留水状态一致,提升低温启动性能;建立集成交流阻抗功能的石墨极板燃料电池电堆及系统,及时调节低温环境下电堆内部水含量,保证系统低温启动功能的可靠性。
上述技术创新大幅提升燃料电池低温性能,基于该技术的新一代燃料电池产品可以实现-40℃低温环境下,126.5s达到额定功率输出,性能指标在国际上处于领先地位。搭载该技术的4.5T氢燃料电池冷藏车于冬奥会期间完成实地低温验证,系列车辆已于今年3月份开始批量化投入使用,有力加速氢燃料电池汽车应用推广和京津冀氢燃料电池汽车示范城市群建设。
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