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A Power Oriented Ni-MH Battery for HEVs

机译：用于混合动力汽车的动力型镍氢电池

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Within the EC granted NEARBY project [1], a power oriented Ni-MH battery has been developed forrnhybrid electric vehicle (HEV) applications using a novel type of irregular shaped nickel hydroxide asrnpositive active material. This paper describes the major features of the project activities and presents inrna condensed form the results from the Task 6 “Bench testing” of the project, carried through at the labsrnof Catella Generics, Sweden.rnThe objective of Task 6 was to acquire knowledge on the battery properties under well-definedrnconditions in the battery testing laboratory. Beyond finding the general battery characteristics, it hasrnbeen of special importance to find load/capacity/state of charge relations and the effects of temperaturernconditions as well as of ageing on these relations. The ageing of the battery has been tried to emulaternby a frequent microcycling of the battery at a medium level state of charge. 40 000 microcycles,rnaccording to the EUCAR specification of a power assist profile for hybrid vehicles, have been carriedrnthrough and they correspond in amount of charge transfer to almost 2 000 full discharge/charge cyclesrnof the battery. At the analysis of the results the notion of a general state of health concept for thernbattery has been sought for. Eventually, the bench-testing task of this project has contributed to therndefinition of an overall model for the energy management system (EMS) for an HEV application ofrnthis battery. The basic features of this model are presented in a separate paper at this conferencerntogether with the outcome of the in-vehicle simulation testing of the battery.
机译：在EC授予的NEARBY项目[1]中，已经开发了一种动力型Ni-MH电池，用于混合动力电动汽车（HEV）应用，它使用了新型的不规则形状的氢氧化镍正极活性材料。本文介绍了该项目活动的主要特征，并介绍了在瑞典Labsrnof Catella Generics进行的项目6任务“基准测试”的结果中总结出的内容。任务6的目的是获取有关项目的知识。在电池测试实验室中明确定义的条件下的电池性能。除了找到一般的电池特性之外，找到负载/容量/充电状态关系以及温度条件以及老化对这些关系的影响已经变得特别重要。已经尝试通过在中等水平的充电状态下频繁的电池微循环来模拟电池的老化。根据EUCAR的混合动力汽车动力辅助配置文件规范，已携带了40 000个微循环，它们的电荷转移量相当于电池的近2000个完全放电/充电循环。在对结果进行分析时，人们一直在寻找电池的总体健康状态概念。最终，该项目的基准测试任务为定义此电池的HEV应用的能源管理系统（EMS）的总体模型做出了贡献。该模型的基本特征将在本次会议的另一篇论文中进行介绍，并进行电池的车载模拟测试。

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