Energy Storage Science and Technology ›› 2025, Vol. 14 ›› Issue (11): 4237-4244.doi: 10.19799/j.cnki.2095-4239.2025.0314

• Energy Storage Materials and Devices • Previous Articles     Next Articles

Research Progress of High-Efficiency Methanol Fuel Cell Technology

Feng XIE1(), Haijun MENG2, Xianzhang LEI3, Xinzhong LI4, Fei DING5, Zhigang SHAO1()   

  1. 1.Dalian Institute of Chemical Physics, CAS, Dalian 116023, Liaoning, China
    2.A certain institute, Academy of Military Sciences, Beijing 100141, China
    3.Southwest Petroleum University, Chengdu 610500, Sichuan, China
    4.Soochow University, Suzhou 215021, Jiangsu, China
    5.Hebei University of Technology, Tianjin 300401, China
  • Received:2025-04-01 Revised:2025-04-29 Online:2025-11-28 Published:2025-11-24
  • Contact: Zhigang SHAO E-mail:xiefeng0794@dicp.ac.cn;zhgshao@dicp.ac.cn

Abstract:

Methanol, with its advantages of low cost, easy storage and transportation, and wide availability, serves as a critical carrier for China's green and low-carbon energy transition and is often referred to as "liquid sunlight." Methanol-based fuel cells have demonstrated broad application prospects in portable power systems, mobile/fixed power stations, and vehicle/ship propulsion. This paper introduces the types and characteristics of various methanol fuel cells and analyzes research and application progress in terms of electrical efficiency. The analysis focuses on temperature matching between methanol reforming and fuel cell operation, waste heat utilization, and power generation efficiency. Direct methanol fuel cells are characterized by low power density, low operating temperatures, and high noble metal catalyst loading, rendering them particularly well-suited for portable power applications. Despite its advanced technological status and considerable miniaturization potential, methanol reforming in conjunction with hydrogen fuel cells exhibits limited system efficiency, primarily due to the underutilization of waste heat from the fuel cell. High-temperature proton exchange membrane fuel cells (HT-PEMFCs), operating at approximately 200 ℃, have the potential to enhance waste heat recovery efficiency and, consequently, system efficiency through optimized thermal management. However, challenges persist in extending membrane lifespan and reducing catalyst usage. Methanol-fed solid oxide fuel cells, which operate at even higher temperatures, achieve the highest theoretical efficiency by fully utilizing waste heat for methanol/water vaporization and reforming. Current research focuses on carbon-resistant anodes and improved thermal conduction structures. In conclusion, the present document summarizes the thermal utilization characteristics of distinct methanol fuel cells and proposes a system design principle of "fixed temperature, adjustable efficiency, and strong thermal coupling" to maximize overall system efficiency.

Key words: methanol, fuel cell, energy efficiency, temperature, thermal recycling

CLC Number: