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固体氧化物燃料电池 7

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催化剂 2

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新能源汽车 2

最小作用量原理 2

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Failure mode investigation of fuel cell for vehicle application

Zhongjun HOU, Renfang WANG, Keyong WANG, Weiyu SHI, Danming XING, Hongchun JIANG

《能源前沿(英文)》 2017年 第11卷 第3期   页码 318-325 doi: 10.1007/s11708-017-0488-0

摘要: The durability of proton exchange membrane fuel cells (PEMFCs) has been posing a key technical challenge to commercial spread of fuel cell vehicles (FCVs). To improve the durability, it is necessary to optimize the fuel cell system (FCS) design against failure modes. The fuel cell durability research method at FCS scale was exhibited, and the failure modes of fuel cell were experimentally investigated in this paper. It is found that the fuel cell dry operation, start/stop cycle and gas diffusion layer (GDL) flooding are typical failure modes of fuel cells. After the modifications against the failure modes, the durability of FCSs is improved to over 3000 h step by step.

关键词: proton exchange membrane fuel cell (PEMFC)     fuel cell system (FCS)     durability     failure mode     fuel cell vehicle (FCV)     carbon corrosion     water management    

Analysis on carbon emission reduction intensity of fuel cell vehicles from a life-cycle perspective

《能源前沿(英文)》 2024年 第18卷 第1期   页码 16-27 doi: 10.1007/s11708-023-0909-1

摘要: The hydrogen fuel cell vehicle is rapidly developing in China for carbon reduction and neutrality. This paper evaluated the life-cycle cost and carbon emission of hydrogen energy via lots of field surveys, including hydrogen production and packing in chlor-alkali plants, transport by tube trailers, storage and refueling in hydrogen refueling stations (HRSs), and application for use in two different cities. It also conducted a comparative study for battery electric vehicles (BEVs) and internal combustion engine vehicles (ICEVs). The result indicates that hydrogen fuel cell vehicle (FCV) has the best environmental performance but the highest energy cost. However, a sufficient hydrogen supply can significantly reduce the carbon intensity and FCV energy cost of the current system. The carbon emission for FCV application has the potential to decrease by 73.1% in City A and 43.8% in City B. It only takes 11.0%–20.1% of the BEV emission and 8.2%–9.8% of the ICEV emission. The cost of FCV driving can be reduced by 39.1% in City A. Further improvement can be obtained with an economical and “greener” hydrogen production pathway.

关键词: hydrogen energy     life-cycle assessment (LCA)     fuel cell vehicle     carbon emission     energy cost    

燃料电池商用车产业发展现状与展望

谭旭光, 余卓平

《中国工程科学》 2020年 第22卷 第5期   页码 152-158 doi: 10.15302/J-SSCAE-2020.05.019

摘要:

面对全球严峻的节能减排与能源紧缺形势,国内外都将燃料电池汽车作为汽车行业的未来战略方向,高能耗高排放的商用车技术变革更显迫切。本文分析了国内外燃料电池汽车产业的发展动态,梳理了主要国家在燃料电池汽车开发和推广过程中所采取的各项举措,总结了我国燃料电池汽车产业发展的优势与面临的问题。研究表明,基于国家级产业引导政策,燃料电池汽车发展路线应以商用车为主;针对制约燃料电池商用车发展的因素,建议通过顶层设计,出台产业专项规划以明确产业发展的方向、目标和重点;强化燃料电池关键共性技术研发突破,解决制约产业快速发展的瓶颈问题,推动燃料电池汽车产业高质量发展。

关键词: 燃料电池     商用车     氢能     新能源    

Abating transport GHG emissions by hydrogen fuel cell vehicles: Chances for the developing world

Han HAO, Zhexuan MU, Zongwei LIU, Fuquan ZHAO

《能源前沿(英文)》 2018年 第12卷 第3期   页码 466-480 doi: 10.1007/s11708-018-0561-3

摘要:

Fuel cell vehicles, as the most promising clean vehicle technology for the future, represent the major chances for the developing world to avoid high-carbon lock-in in the transportation sector. In this paper, by taking China as an example, the unique advantages for China to deploy fuel cell vehicles are reviewed. Subsequently, this paper analyzes the greenhouse gas (GHG) emissions from 19 fuel cell vehicle utilization pathways by using the life cycle assessment approach. The results show that with the current grid mix in China, hydrogen from water electrolysis has the highest GHG emissions, at 3.10 kgCO2/km, while by-product hydrogen from the chlor-alkali industry has the lowest level, at 0.08 kgCO2/km. Regarding hydrogen storage and transportation, a combination of gas-hydrogen road transportation and single compression in the refueling station has the lowest GHG emissions. Regarding vehicle operation, GHG emissions from indirect methanol fuel cell are proved to be lower than those from direct hydrogen fuel cells. It is recommended that although fuel cell vehicles are promising for the developing world in reducing GHG emissions, the vehicle technology and hydrogen production issues should be well addressed to ensure the life-cycle low-carbon performance.

关键词: hydrogen     fuel cell vehicle     life cycle assessment     energy consumption     greenhouse gas (GHG) emissions     China    

Accelerated life-time test of MEA durability under vehicle operating conditions in PEM fuel cell

Tian TIAN, Jianjun TANG, Wei GUO, Mu PAN

《能源前沿(英文)》 2017年 第11卷 第3期   页码 326-333 doi: 10.1007/s11708-017-0489-z

摘要: In this paper, a novel accelerated test method was proposed to analyze the durability of MEA, considering the actual operation of the fuel cell vehicle. The proposed method includes 7 working conditions: open circuit voltage (OCV), idling, rated output, overload, idling-rated cycle, idling-overload cycle, and OCV-idling cycle. The experimental results indicate that the proposed method can effectively destroy the MEA in a short time (165 h). Moreover, the degradation mechanism of MEA was analyzed by measuring the polarization curve, CV, SEM and TEM. This paper may provide a new research direction for improving the durability of fuel cell.

关键词: polymer electrolyte membrane fuel cell     accelerated life-time test     load cycling test     durability    

车用燃料电池电堆比功率提升的技术途径探讨

侯明,邵志刚,衣宝廉

《中国工程科学》 2019年 第21卷 第3期   页码 84-91 doi: 10.15302/J-SSCAE-2019.03.002

摘要:

燃料电池车作为新能源汽车的一种,以其续驶里程长、动力性能高、燃料加注快、兼容可再生能源等特点,得到愈来愈广泛的重视。燃料电池堆是燃料电池汽车的核心,其比功率是反应燃料电池堆技术水平的重要指标,掌握高比功率燃料电池电堆技术可以降低电堆硬件数量,从而也会使电堆成本得到大幅降低。国际上先进的燃料电池堆由于具有高的比功率使其在车辆有限空间能提供较大功率,满足了车辆动力需求;然而,国内目前电堆比功率相比国际先进水平还有一定差距,针对这一问题,本文从高活性催化剂、增强复合质子交换膜、高扰动流场、导电耐腐蚀薄金属双极板、电堆组装与一致性等多方面,探讨了提高燃料电池电堆比功率的技术途径,基于理论与实践积累分析了燃料电池活化极化、欧姆极化及传质极化与材料、部件、组装的关联性,为进一步提高燃料电池堆性能与比功率提供方向性参考。

关键词: 燃料电池车     燃料电池电堆     性能     比功率    

A comprehensive assessment on the durability of gas diffusion electrode materials in PEM fuel cell stack

Arunkumar JAYAKUMAR

《能源前沿(英文)》 2019年 第13卷 第2期   页码 325-338 doi: 10.1007/s11708-019-0618-y

摘要: Polymer electrolyte membrane (PEM) fuel cell is the most promising among the various types of fuel cells. Though it has found its applications in numerous fields, the cost and durability are key barriers impeding the commercialization of PEM fuel cell stack. The crucial and expensive component involved in it is the gas diffusion electrode (GDE) and its degradation, which limits the performance and life of the fuel cell stack. A critical analysis and comprehensive understanding of the structural and functional properties of various materials involved in the GDE can help us to address the related durability and cost issues. This paper reviews the key GDE components, and in specific, the root causes influencing the durability. It also envisages the role of novel materials and provides a critical recommendation to improve the GDE durability.

关键词: PEM fuel cell     gas diffusion electrode(GDE)     gas diffusion layer(GDL)     membrane electrode assembly     durability     fuel cell catalyst    

A hybrid fuel cell for water purification and simultaneously electricity generation

《环境科学与工程前沿(英文)》 2023年 第17卷 第1期 doi: 10.1007/s11783-023-1611-6

摘要:

● A novel hybrid fuel cell (F-HFC) was fabricated.

关键词: Flow-through field     Hybrid fuel cell     Polyoxometalates     Water purification     Electricity generation    

Emission components characteristics of a bi-fuel vehicle at idling condition

Sameh M. METWALLEY, Shawki A. ABOUEL-SEOUD, Abdelfattah M. FARAHAT

《能源前沿(英文)》 2011年 第5卷 第3期   页码 322-329 doi: 10.1007/s11708-011-0158-6

摘要: Natural gas (NG) represents today a promising alternative to conventional fuels for road vehicles propulsion, since it is characterized by a relatively low cost, better geopolitical distribution than oil, and lower environmental impact. This explains the current spreading of compressed natural gas (CNG) fuelled spark ignition (SI) engine, above all in the bi-fuel version, which is able to run either with gasoline or with NG. However, the aim of the present investigation is to evaluate the emission characteristics at idling condition. The vehicle engine was converted to bi-fueling system from a gasoline engine, and operated separately either with gasoline or CNG. Two different fuel injection systems (i.e., multi-point injection (MPI)-sequential and closed-loop venturi-continuous) are used, and their influences on the formation of emissions at different operating conditions are examined. A detailed comparative analysis of the engine exhaust emissions using gasoline and CNG is made. The results indicate that the CNG shows low air index and lower emissions of carbon monoxide (CO), carbon dioxide (CO ), and total hydrocarbon (THC) compared to gasoline.

关键词: road vehicle engine     fuel injection systems     carbon monoxide (CO)     carbon dioxide (CO2)     total hydrocarbon (THC)     vehicle idle conditions     air index    

电动汽车和相关电源材料的现状与前景

杨遇春

《中国工程科学》 2003年 第5卷 第12期   页码 1-11

摘要:

论述了电动汽车(EV)、电动汽车用镍氢电池、锂离子电池、质子交换膜燃料电池(PEMFC)、固体氧化物燃料电池(SOFC)及相关材料的研发现状、产业化前景,指出以电动汽车代替燃油内燃机汽车,以氢能代替碳基燃料,是当前运输业的主要发展方向。

关键词: 电动汽车     镍氢电池     锂离子电池     质子交换膜燃料电池     固体氧化物燃料电池    

TiO supported IrO for anode reversal tolerance in proton exchange membrane fuel cell

《能源前沿(英文)》 2022年 第16卷 第5期   页码 852-861 doi: 10.1007/s11708-021-0811-7

摘要: Fuel starvation can occur and cause damage to the cell when proton exchange membrane fuel cells operate under complex working conditions. In this case, carbon corrosion occurs. Oxygen evolution reaction (OER) catalysts can alleviate carbon corrosion by introducing water electrolysis at a lower potential at the anode in fuel shortage. The mixture of hydrogen oxidation reaction (HOR) and unsupported OER catalyst not only reduces the electrolysis efficiency, but also influences the initial performance of the fuel cell. Herein, Ti4O7 supported IrOx is synthesized by utilizing the surfactant-assistant method and serves as reversal tolerant components in the anode. When the cell reverse time is less than 100 min, the cell voltage of the MEA added with IrOx/Ti4O7 has almost no attenuation. Besides, the MEA has a longer reversal time (530 min) than IrOx (75 min), showing an excellent reversal tolerance. The results of electron microscopy spectroscopy show that IrOx particles have a good dispersity on the surface of Ti4O7 and IrOx/Ti4O7 particles are uniformly dispersed on the anode catalytic layer. After the stability test, the Ti4O7 support has little decay, demonstrating a high electrochemical stability. IrOx/Ti4O7 with a high dispersity has a great potential to the application on the reversal tolerance anode of the fuel cell.

关键词: proton exchange membrane fuel cell (PEMFC)     fuel starvation     cell reverse     reversal tolerance anode     oxygen evolution reaction    

Dimethyl ether as alternative fuel for CI engine and vehicle

Zhen HUANG , Xinqi QIAO , Wugao ZHANG , Junhua WU , Junjun ZHANG ,

《能源前沿(英文)》 2009年 第3卷 第1期   页码 99-108 doi: 10.1007/s11708-009-0013-1

摘要: As a developing and the most populous country in the world, China faces major challenges in energy supply and environmental protection. It is of great importance to develop clean and alternative fuels for internal combustion engines. On the basis of researches on DME engine and vehicle at Shanghai Jiaotong University in the last twelve years, fuel injection, combustion, performance and exhaust emissions of DME engine and DME vehicle are introduced in this paper. The results indicate that DME engines can achieve high thermal efficiency and ultra low emissions, and will play a significant role in meeting the energy demand while minimizing environmental impact in China.

关键词: dimethyl ether (DME)     fuel injection     combustion process     emission control     CI engine     vehicle    

Significant potential of Solid Oxide Fuel Cell systems for distributed power generation and carbon neutrality

《能源前沿(英文)》 2022年 第16卷 第6期   页码 879-882 doi: 10.1007/s11708-022-0850-8

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Numerical investigation of the chemical and electrochemical characteristics of planar solid oxide fuelcell with direct internal reforming

Yuzhang WANG, Shilie WENG, Yiwu WENG

《能源前沿(英文)》 2011年 第5卷 第2期   页码 195-206 doi: 10.1007/s11708-011-0148-8

摘要: A fully three-dimensional mathematical model of a planar solid oxide fuel cell (SOFC) with complete direct internal steam reforming was constructed to investigate the chemical and electrochemical characteristics of the porous-electrode-supported (PES)-SOFC developed by the Central Research Institute of Electric Power Industry of Japan. The effective kinetic models developed over the Ni/YSZ anode takes into account the heat transfer and species diffusion limitations in this porous anode. The models were used to simulate the methane steam reforming processes at the co- and counter-flow patterns. The results show that the flow patterns of gas and air have certain effects on cell performance. The cell at the counter-flow has a higher output voltage and output power density at the same operating conditions. At the counter-flow, however, a high hotspot temperature is observed in the anode with a non-fixed position, even when the air inlet flow rate is increased. This is disadvantageous to the cell. Both cell voltage and power density decrease with increased air flow rate.

关键词: planar solid oxide fuel cell (SOFC)     direct internal reforming     chemical reaction     methane     electrochemical    

Experimental study on current distribution in parallel-connected solid oxide fuel cell strings

《能源前沿(英文)》 doi: 10.1007/s11708-024-0941-9

摘要: To increase the power generated by solid oxide fuel cells (SOFCs), multiple cells have to be connected into a stack. Nonuniformity of cell performance is a worldwide concern in the practical application of stack, which is known to be unavoidable and caused by manufacturing and operating conditions. However, the effect of such nonuniformity on SOFCs that are connected in parallel has not been discussed in detail so far. This paper provides detailed experimental data on the current distribution within a stack with nonuniform cells in parallel connection, based on the basics of electricity and electrochemistry. Particular phenomena found in such a parallel system are the “self-discharge effect” in standby mode and the “capacity-proportional-load sharing effect” under normal operating conditions. It is believed that the experimental method and results proposed in this paper can be applied to other types of fuel cell or even other energy systems.

关键词: solid oxide fuel cells (SOFCs)     stack     nonuniformity     parallel connection     current distribution    

标题 作者 时间 类型 操作

Failure mode investigation of fuel cell for vehicle application

Zhongjun HOU, Renfang WANG, Keyong WANG, Weiyu SHI, Danming XING, Hongchun JIANG

期刊论文

Analysis on carbon emission reduction intensity of fuel cell vehicles from a life-cycle perspective

期刊论文

燃料电池商用车产业发展现状与展望

谭旭光, 余卓平

期刊论文

Abating transport GHG emissions by hydrogen fuel cell vehicles: Chances for the developing world

Han HAO, Zhexuan MU, Zongwei LIU, Fuquan ZHAO

期刊论文

Accelerated life-time test of MEA durability under vehicle operating conditions in PEM fuel cell

Tian TIAN, Jianjun TANG, Wei GUO, Mu PAN

期刊论文

车用燃料电池电堆比功率提升的技术途径探讨

侯明,邵志刚,衣宝廉

期刊论文

A comprehensive assessment on the durability of gas diffusion electrode materials in PEM fuel cell stack

Arunkumar JAYAKUMAR

期刊论文

A hybrid fuel cell for water purification and simultaneously electricity generation

期刊论文

Emission components characteristics of a bi-fuel vehicle at idling condition

Sameh M. METWALLEY, Shawki A. ABOUEL-SEOUD, Abdelfattah M. FARAHAT

期刊论文

电动汽车和相关电源材料的现状与前景

杨遇春

期刊论文

TiO supported IrO for anode reversal tolerance in proton exchange membrane fuel cell

期刊论文

Dimethyl ether as alternative fuel for CI engine and vehicle

Zhen HUANG , Xinqi QIAO , Wugao ZHANG , Junhua WU , Junjun ZHANG ,

期刊论文

Significant potential of Solid Oxide Fuel Cell systems for distributed power generation and carbon neutrality

期刊论文

Numerical investigation of the chemical and electrochemical characteristics of planar solid oxide fuelcell with direct internal reforming

Yuzhang WANG, Shilie WENG, Yiwu WENG

期刊论文

Experimental study on current distribution in parallel-connected solid oxide fuel cell strings

期刊论文