CAJ | 학술논문

理想超级电容器模块原本应遵循其单体性能,但由于超级电容器不一致性的客观存在,使模块特性受限于最差单体,并将引起全储能系统加速老化,严重妨碍大规模储能领域的开发和应用,因此超级电容器的不一致性研究对大规模储能系统的安全可信、高效可用非常关键.该文阐述了现有超级电容器单体特性差异的成因及不一致性与老化的内在联系,分析了特征参数对储能模块使用的影响,给出了可用于评价超级电容器单体离散程度的参数,试验验证了标准充电与自放电工况下的单体特性差异,反映了离散程度随正常使用而不断劣化,根据不一致性研究现状展望了未来超级电容器值得深入探索的方向.
이상초급전용기모괴원본응준순기단체성능,단유우초급전용기불일치성적객관존재,사모괴특성수한우최차단체,병장인기전저능계통가속노화,엄중방애대규모저능영역적개발화응용,인차초급전용기적불일치성연구대대규모저능계통적안전가신、고효가용비상관건.해문천술료현유초급전용기단체특성차이적성인급불일치성여노화적내재련계,분석료특정삼수대저능모괴사용적영향,급출료가용우평개초급전용기단체리산정도적삼수,시험험증료표준충전여자방전공황하적단체특성차이,반영료리산정도수정상사용이불단열화,근거불일치성연구현상전망료미래초급전용기치득심입탐색적방향.
Ideal performance of an energy storage module should reflect the overall ability of its individual components. However, module performance would be limited by its worst cell and module ageing might be accelerated by supercapacitor's nonuniformity. This phenomenon severely impedes the development of large-scale energy storage. Therefore the research aiming at nonuniformity is of great importance to the effectiveness, safety and reliability of the large-scale energy storage system. The paper first reviews five possible causes of supercapacitor's nonuniformity and analyzes its internal relationship with ageing. The paper then states the nonuniformity influence on module employment. Next, the paper discusses the criteria used for supercapacitor's nonuniformity evaluation. After that, the results of experiments in paper show the characteristic difference between cells and also prove the growth of nonuniformity. Finally, by analyzing state-of-the-art, the paper predicts the research trends.