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Forum GE成功开发双电池混合动力系统
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Related

GE成功开发双电池混合动力系统

YYD
YYD over 14 years ago

来源:张江报

      近日,GE全球研发中心宣布其混合动力系统研发团队成功开发了一种双电池系统,这种新系统的应用将加速公交巴士、货运卡车和其他大型车辆的电气化进程,并有望将电池成本降低20%。

      由25名科学家及工程师组成的GE混合动力系统研发团队成功地展示了一组由高容量钠电池和高功率锂电池共同驱动的零排放双电池混合动力公交车。位于张江的GE中国研发中心参加了双电池系统的研发工作。

      如今大多数类型的电池在容量及功率方面都难以得到两全。锂电池可以为车辆提供强劲的动力,但容量很低;而钠电池则相反,它可以储存大量能量,但是在功率方面并不突出。随着电池技术的日益改进,如何进一步降低电池成本和缩小电池体积是电动汽车能否被广泛应用的关键。

      GE的科研人员认为,对于大型车而言,兼备高容量和高功率的双电池系统能够在合理的体积和成本范围内同时达到快速加速和长距离驾驶的要求。新开发的双电池电动公交车中,两者各自发挥出自己的强项:锂电池为汽车加速及制动提供了高功率,而钠电池为汽车行驶提供了一个恒定的功率。在同时要求高功率和高电量的公交车、运输卡车等大型车辆上使用双电池系统,不但可以提高车辆性能,还可以降低最高达20%的电池成本。

      此项目由美国国家燃料电池公共汽车项目资助,是高达1300万美元的研究项目中的一部分,由GE和联邦运输管理局(FTA)以及东北高级汽车联合会共同合作完成。

      GE近期宣布,将通过旗下金融集团的汽车租赁业务在2015年之前购买2万5千台电动汽车。GE将在2011年从GM购买1万2千台电动汽车。此项购买计划从雪佛兰Volt车型开始,随后会扩大至其他汽车厂商的电动车车型。

      最近,GE承诺在未来5年时间里将绿色环保技术的研发资金投入从50亿美元提高到100亿美元。

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