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  • 為提升新能源車電池的安全性 廠商都做了什么?

    根據國家市場監督管理總局的數據,2018年國內至少發生40起涉及新能源汽車的火災事故,今年4月起,又接二連三發生電動汽車起火冒煙事故,動力電池安全性是一個敏感的話題,又是一個不能回避的話題。

    王子冬:動力電池安全問題如何解決?

    王子冬認為,在沒有掌握鋰電池起火規律之前,把控能量密度與安全性和長壽命的平衡關系是不能忽視的問題。

    新能源汽車發展之本 有安全才有未來

    新能源汽車的安全性一直是重中之重,近期多起新能源汽車自燃及召回事件,又將各行各業的眼球聚焦在新能源汽車的安全問題上。

    固態電池成為下一代動力電池開發方向?

    我國新能源汽車正處于由市場導入期向產業成長期過渡的關鍵階段,頻發的新能源汽車安全事故讓行業面臨著前所未有的挑戰,究其原因還是要追溯到動力電池上,高能量密度與安全性的矛盾一直是業內所關注的焦點。

    新能源汽車發展的“命門”:電池安全誰來負責?

    安全是新能源汽車的頭等大事,動力電池作為新能源汽車的核心部件,然而,2019年上半年,新能源汽車自燃事故頻發,引發了公眾對新能源汽車安全性的質疑。未來,新能源汽車的安全問題該如何解決呢

    把新能源汽車安全性落到實處

    隨著我國新能源汽車產業進入加速發展新階段,新能源汽車產銷和保有量快速上升。越是在這個時候,企業越是要堅持“安全第一”的底線思維,不能為了搶占市場而不顧產品質量,心浮氣躁會給產業健康發展埋下隱患。

    一汽徐留平:高安全性是電動汽車產業持續發展的關鍵和基礎

    世界新能源汽車大會(WNEVC)于2019年7月1-3日在海南博鰲隆重召開。在全體大會上,中國第一汽車集團有限公司董事長徐留平發表了主題演講。

    動力電池被迫進入“811時代” 安全性將走向何方

    隨著三元鋰電池的產量日漸擴張,三種較稀有的金屬供應壓力也越來越大,加之政策對電池能量密度要求的日漸提升,“811時代”悄然而至。

    BMS電池管理系統講解

    BMS實時采集、處理、存儲電池組運行過程中的重要信息,與外部設備如整車控制器交換信息,解決鋰電池系統中安全性、可用性、易用性、使用壽命等關鍵問題。

    三元鋰電池遭“挑戰”,改變電池產業格局的難道就是它?

    固態電池憑借其強大安全性和能量密度高的優勢,近些年也廣受關注,廣大車企及電池企業紛紛進行布局。

    又薄又柔的固態電解質,讓全固態鋰電池飛起來!

    鋰離子電池是當今電池世界的霸主,隨著對能量密度越來越高的要求,采用金屬鋰負極成為大勢所趨,而金屬鋰負極進一步增加了電池安全風險。解決電池安全性能的重要任務,就這樣落到了全固態鋰電池的肩上。

    國軒高科:磷酸鐵鋰電池回歸趨勢顯現

    國軒高科公布5月30日上午12家國內外機構調研情況,表示針對補貼退坡,公司早有預計和準備。在國內補貼退坡、新能源汽車安全性不斷被提及的大背景下,磷酸鐵鋰電池回歸趨勢顯現。

    歐陽明高:內短路不是熱失控的主要熱量來源

    熱失控是鋰離子電池最嚴重的安全事故,一旦發生將嚴重的威脅使用者的生命和財產安全,但我們對于鋰離子電池發生熱失控的機理了解并不多,這也限制了我們提升鋰離子電池安全性的努力。

    我國新能源汽車產業充換電模式的比較分析

    電池包高壓接口頻繁插接存在能量損耗,采用液冷系統的電池包對換電結構是個巨大的考驗,頻繁插拔,會帶來極大的安全隱患。換電模式對電池系統的耐久性、安全性影響一直是主要汽車企業關注的重點,需要進一步驗證。

    純電動汽車碰撞安全性能開發(一):純電動車與燃油車的差異

    純電動車相比燃油車,內燃機和變速器變成電機和減速器,而且增加了巨大的動力電池系統,如圖1。所以電動車在空間布置、重量分布、高壓電安全、動力電池防護等方面都與燃油車有很大差異。
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