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怠速启停车用铅蓄电池技术的发展历程

摘要：汽车制造厂家一直在努力开发怠速启停车以提高燃油效率，采用的装置比电动汽车和混合式电动车辆所用的要简单且成本低。怠速启停车用装置不仅要求铅蓄电池有更大的电力起动和再起动，而且需要在路上怠速启停车时电池有更大的电荷。怠速启停车用铅蓄电池必须具有优良的耐久性，原因是这种电池的充电量和放电量要比普通电池大得多。为提高燃油效率，还必须尽可能减少由车辆发动机转动提供的电能，怠速启停车用铅蓄电池的充电时间比普通电池要短得多，而且还必须在几秒钟之内接受补充电，因此，要求电池具有高度的充电接受能力。通过优化活性物质的组成、板栅设计及电解液添加剂，提高了怠速启停车用铅蓄电池的耐久性和充电接受能力。自2009年GS-汤浅电池公司开始上市供应这种电池，其补充电接受能力和耐久性能，分别约高于普通电池的3倍和4倍。本文叙述了怠速启停车用铅蓄电池的技术变化。 叙词：铅蓄电池 怠速启停车 再生充电接受能力 部分荷电状态 Abstract：Automotive manufactures have been trying the development of idling stop vehicles to improve fuel efficiency with simple systems and low cost compared to EVs and HEVs. The idling stop system (ISS)requires more and more electric power to lead-acid battery for not only cramking including re-starting but also electric load during the idiling stop on the road. The lead-acid battery for ISS must have high durability performance. Because the amount of charge and discharge for ISS increases obviously as compared with that of conventional vehicles. It is also necessary to decrease the electrical energy provided by the rotation of vehicle engine as much as possible to improve fuel efficiency. Charging time of the lead-acid battery for ISS needs to be much shorter than that of conventional batteries, and the regenerative charge must be accepted in seconds. Therefore. High charge acceptance is required on the lead-acid battery for ISS. We have improved the durability and the charge acceptance of the lead-acid battery for ISS through optimizing active material compositions, grid design, and additive addition to electrolyte since we started to supply in the market in 2009. As a result, the regenerative charge acceptance is about 3 times higher, and the durability is about 4 times higher than that of conventional batteries. In this report we describe these technical transitiorns of the lead-acid battery for ISS. Keyword：Lead-acid battery, Idling stop, Regenerative charge acceptance, PSOC

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