CN116646662A - 电池模块和包括电池模块的电池组 - Google Patents
电池模块和包括电池模块的电池组 Download PDFInfo
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- 239000010445 mica Substances 0.000 claims description 24
- 229910052618 mica group Inorganic materials 0.000 claims description 24
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 10
- 229910052744 lithium Inorganic materials 0.000 description 10
- 238000003780 insertion Methods 0.000 description 8
- 230000037431 insertion Effects 0.000 description 8
- 238000004880 explosion Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 6
- 230000007480 spreading Effects 0.000 description 6
- 238000003892 spreading Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000007773 negative electrode material Substances 0.000 description 4
- 239000007774 positive electrode material Substances 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- FUJCRWPEOMXPAD-UHFFFAOYSA-N lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 1
- 229910001947 lithium oxide Inorganic materials 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
公开了一种电池模块。电池模块包括:电池单元堆,其中堆叠有多个电池单元;火焰蔓延防止构件,其构造成覆盖每个电池单元的至少一部分;和壳体,其构造成容纳由火焰蔓延防止构件覆盖的电池单元堆。
Description
技术领域
本申请是申请号为201880038863.4的发明专利申请的分案申请。
本申请要求于2018年2月6日在韩国提交的韩国专利申请第10-2018-0014621号的优先权,其公开内容通过引用合并于此。
本公开涉及一种电池模块和包括该电池模块的电池组,更具体地,涉及一种能够防止在任何一个电池单元处产生的火焰蔓延到其他电池单元的电池模块以及包括该电池模块的电池组。
背景技术
随着技术的发展和对移动设备的需求的增加,对作为能量源的二次电池的需求迅速增加。常规地,镍镉电池或氢离子电池已经被用作二次电池。然而,近来锂二次电池被广泛使用,这是因为与镍基二次电池相比,锂二次电池由于极少的记忆效应而充放电自由,自放电率非常低,并且能量密度很高。
锂二次电池主要使用氧化锂和碳质材料分别作为正极活性材料和负极活性材料。锂二次电池包括电极组件和外部构件,在电极组件中布置了分别涂覆有正极活性材料和负极活性材料且其间具有隔板的正极板和负极板,外部构件是电池壳,电池壳将电极组件与电解质溶液一起密封并容纳。
锂二次电池包括正极、负极以及介于它们之间的隔板和电解质。取决于将哪种材料用于正极活性材料和负极活性材料,锂二次电池分为锂离子电池(LIB)和聚合物锂离子电池(PLIB)。通常,锂二次电池的电极是通过将正极或负极活性材料施加到由铝或铜片、网、膜、箔等制成的集电器上,然后将其干燥而制备的。
锂二次电池由于其高工作电压和非常高的能量密度而备受关注。但是,由于锂二次电池使用有机电解质,因此在过度充电时,锂二次电池可能会引起过电流和过热,从而可能导致爆炸或着火。
对于二次电池,在堆叠有多个电池单元的传统电池模块的情况下,如果任何一个电池单元由于过电流和过热而爆炸或着火,则火焰蔓延到正常工作的其他电池单元,从而使多个电池单元串联爆炸。这可能会损坏配备有电池模块的各种设备,并且可能使用户面临发生安全事故的危险。
发明内容
技术问题
本公开旨在提供一种可以防止在多个电池单元中的任何一个电池单元处产生的火焰蔓延到其他电池单元的电池模块和包括该电池模块的电池组。
另外,本公开旨在提供一种由于简单的火焰蔓延防止结构而易于制造的电池模块和包括该电池模块的电池组。
技术方案
在本公开的一个方面,提供了一种电池模块,包括:电池单元堆,其中堆叠有多个电池单元;火焰蔓延防止构件,其构造成覆盖每个电池单元的至少一部分;壳体,其构造成容纳由火焰蔓延防止构件覆盖的电池单元堆。
另外,火焰蔓延防止构件可以包括云母板,该云母板包含具有绝热性和耐热性的云母。
另外,可以在火焰蔓延防止构件中形成中空部,以便将电池单元插入到火焰蔓延防止构件中。
此外,电池单元可以是具有矩形截面的袋型电池单元,并且火焰蔓延防止构件可以具有六面体形状。
另外,电池单元可以是具有矩形截面的袋型电池单元,并且火焰蔓延防止构件可以设置成覆盖袋型电池单元的两个壁。
另外,火焰蔓延防止构件可以包括:第一盖单元,其构造成覆盖袋型电池单元的第一壁;以及第二盖单元,其从第一盖单元弯曲以覆盖袋型电池单元的第二壁。
另外,电池模块还可以包括框架,该框架耦接到壳体并且具有以预定间隔形成的多个插入凹槽,其中,火焰蔓延防止构件可滑动地耦接到框架的每个插入凹槽,并且电池单元可以介于彼此相邻的火焰蔓延防止构件之间。
另外,框架可以成对设置,一对框架可以分别耦接到壳体的上侧和下侧,使得一对框架的插入凹槽彼此面对,并且火焰蔓延防止构件的两端可以分别插入一对框架的插入凹槽中。
另外,框架可以包括云母板,该云母板包含具有绝热性和耐热性的云母。
同时,在本公开的另一方面,还提供了一种包括上述电池模块的电池组。
有益效果
根据本公开的实施例,由于火焰蔓延防止构件覆盖多个电池单元的至少一部分,所以即使在多个电池单元中的任何一个电池单元处发生爆炸或着火,也可以防止火焰蔓延到其他电池单元。
另外,由于形成了由具有绝热性和耐热性的云母制成的火焰蔓延防止构件以简化火焰蔓延防止结构,所以可以容易地制造电池模块。
附图说明
图1是示出根据本公开的第一实施例的电池模块的截面图。
图2是示出了根据本公开的第一实施例的电池模块的透视图,其中分解了火焰蔓延防止构件和电池单元。
图3是示出根据本公开的第一实施例的电池模块的示意性透视图,其中单个电池单元被火焰蔓延防止构件覆盖。
图4是示出根据本公开的第二实施例的电池模块的截面图。
图5是示出根据本公开的第二实施例的电池模块的示意性透视图,其中单个电池单元被火焰蔓延防止构件覆盖。
图6是示出根据本公开的第三实施例的电池模块的截面图。
图7是示出根据本公开的第三实施例的电池模块的截面图,其中一对框架耦接至壳体的上侧和下侧。
具体实施方式
在下文中,将参考附图详细描述本公开的优选实施例。在描述之前,应该理解的是,说明书和所附权利要求书中使用的术语不应被解释为限于一般含义和词典含义,而应基于允许发明人为最佳解释适当定义术语的原则,基于与本公开的技术方面相对应的含义和概念来解释。因此,本文提出的描述仅是出于说明目的的优选示例,而无意于限制本公开的范围,因此应当理解,在不脱离本公开的范围的情况下,可以对其做出其他等同替换和修改。
在附图中,为了便于描述和清楚起见,每个元件或元件特定部分的尺寸可以被放大、省略或示意性地示出。因此,每个元件的大小不能完全反映该元件的实际大小。如果与本公开相关的公知功能或元件的详细描述不必要地模糊了本公开的主题,则将省略其详细描述。
这里使用的术语“结合”或“连接”不仅可以指一个构件和另一构件直接结合或直接连接的情况,还可以指一个构件通过连接构件与另一构件间接结合或间接连接的情况。
图1是示出根据本公开的第一实施例的电池模块的截面图。图2是示出根据本公开的第一实施例的电池模块的透视图,其中分解了火焰蔓延防止构件和电池单元。图3是示出根据本公开的第一实施例的电池模块的示意性透视图,其中单个电池单元被火焰蔓延防止构件覆盖。
参照图1至图3,根据本公开的第一实施例的电池模块10包括电池单元堆100、火焰蔓延防止构件200和壳体300。
电池单元堆100包括多个堆叠的电池单元110。电池单元110可以具有各种结构,并且可以以各种方式堆叠多个电池单元110。电池单元110可具有多个单电池或多个双电池以适合于电池容量的方式堆叠的结构,在每一单电池中依次布置有正极板、隔板和负极板,在每一双电池中依次布置有正极板、隔板、负极板、隔板、正极板、隔板和负极板。电池单元110可以包括电极引线113。电极引线113是一种暴露于外部并且连接到外部装置的端子,并且可以由导电材料制成。电极引线113可以包括正极引线和负极引线。正极引线和负极引线可以在纵向上设置在电池单元110的相对侧,或者正极引线和负极引线可以在纵向上设置在电池单元110的相同侧。
火焰蔓延防止构件200单独地覆盖多个电池单元110中每一个电池单元的至少一部分。这里,尽管火焰蔓延防止构件200可以接触电池单元110以覆盖电池单元110,但是火焰蔓延防止构件200可以在与电池单元110隔开预定间隔的状态下覆盖电池单元110。在这种情况下,火焰蔓延防止构件200可以由壳体300支撑。同时,在本公开的第一实施例中,如图1和图3所示,描述了火焰蔓延防止构件200围绕单个电池单元110的除了形成有电极引线113的侧表面之外的所有侧表面,即,电池单元110的除了形成有电极引线113的侧表面之外的所有四个侧表面,但是本公开不限于此。在另一个实施例中,例如,如果电池单元110具有大致六面体的形状,则可以将火焰蔓延防止构件200设置为仅围绕电池单元110的除了形成有电极引线113的表面之外的四个表面中的三个表面。
火焰蔓延防止构件200可以被设置为云母板,该云母板包含具有绝热性和耐热性的云母。在此,云母板不仅可以具有平坦的云母板形状,而且可以是平面和曲面的混合。另外,如图2所示,火焰蔓延防止构件200可以形成为六面体形状,其中四个云母板耦接以在其中形成中空部210。在此,四个云母板可以整体形成,或者四个云母板可分开制备然后彼此耦接。然而,云母板的数量和形状不限于上述。例如,如果电池单元110是具有矩形截面的袋型电池单元110,则火焰蔓延防止构件200可以形成为具有形成在其中的中空部210的六面体形状,并且如图2所示,袋型电池单元110可以插入并放置在火焰蔓延防止构件200的中空部210中。在此,如果火焰蔓延防止构件200由具有绝热性和耐热性的云母制成,则即使在任何一个电池单元110中发生爆炸或着火,火焰也可被云母板阻挡并且阻止火焰蔓延到其他电池单元110。即,参照图1,由于多个电池单元110全部由各自的火焰蔓延防止构件200分别覆盖,所以即使在任何一个电池单元110中发生了着火,也能够防止火焰蔓延,因此可以防止火焰引起更大的火灾。同时,火焰蔓延防止构件200由比铝轻的薄云母板形成,这有利于制造并且简化了结构。然而,火焰蔓延防止构件200的材料不必限于包含云母的云母板,而是可以使用多种已知材料,只要它们能够形成薄板形状并且具有耐热性和绝热性即可。
壳体300容纳由火焰蔓延防止构件200覆盖的电池单元堆100。壳体300围绕电池单元110,从而保护电池单元110免受外部振动或冲击。壳体300可以形成为与电池单元堆100的形状相对应的形状。例如,如果电池单元110或电池单元堆100具有截面为矩形的六面体形状,则壳体300也可以具有与其相对应的六面体形状。壳体300可以例如通过弯曲金属制成的板来制造,因此壳体300可以制成为整体形式。如果壳体300制成为整体形式,则耦接过程简化。替代地,壳体300可以被制备为分离的部件,分离的部件通过焊接等相互耦接。
在下文中,将参照附图描述根据本公开的第一实施例的电池模块10的操作和效果。
参照图1至图3,电池单元110可以形成为大致六面体形状,并且由云母板形成的火焰蔓延防止构件200可以设置为围绕电池单元110的除了形成有电极引线113的两个表面之外的四个表面。即,一个火焰蔓延防止构件200围绕多个电池单元110中的一个电池单元,并且多个火焰蔓延防止构件200可以以此方式分别覆盖电池单元110。另外,由火焰蔓延防止构件200覆盖的电池单元堆100容纳在壳体300中。
以此方式,根据本公开的第一实施例,由于火焰蔓延防止构件200分别覆盖所有多个电池单元110,所以即使在多个电池单元110中的任何一个电池单元中发生了爆炸或着火,也可以防止火焰蔓延到其他电池单元110。
图4是示出根据本公开的第二实施例的电池模块的截面图。图5是示出根据本公开的第二实施例的电池模块的示意性透视图,其中单个电池单元被火焰蔓延防止构件覆盖。
在下文中,将参照附图描述根据本公开的第二实施例的电池模块10的操作和效果。在此,将不再详细描述已经关于根据本公开的第一实施例的电池模块10解释的特征。
本公开的第二实施例与第一实施例的不同之处在于,在第一实施例中,火焰蔓延防止构件200完全覆盖电池单元110,而在第二实施例中,火焰蔓延防止构件200仅覆盖电池单元110的一部分。
参照图4和图5,在本公开的第二实施例中,电池单元110是具有矩形截面的袋型电池单元110,并且火焰蔓延防止构件200形成为大致“┐”形,以覆盖电池单元110的两个壁111、112,即围绕两个壁111、112。这里,火焰蔓延防止构件200可以接触电池单元110的任何两个壁111、112,或者火焰蔓延防止构件200可以由壳体300支撑以与电池单元110的壁111、112隔开预定间隔。
火焰蔓延防止构件200可以包括第一盖单元220和第二盖单元230。第一盖单元220覆盖袋型电池单元110的第一壁111,并且第二盖单元230从第一盖单元220弯曲以覆盖袋型电池单元110的第二壁112。因此,火焰蔓延防止构件200可以形成为大致“┐”形以覆盖电池单元110的两个壁111、112,并且即使在多个电池单元110中的任何一个电池单元中发生爆炸或着火,也可以防止火焰蔓延到其他电池单元110。
图6是示出根据本公开的第三实施例的电池模块的截面图。图7是示出根据本公开的第三实施例的电池模块的截面图,其中一对框架耦接至壳体的上侧和下侧。
在下文中,将参照附图描述根据本公开的第三实施例的电池模块10的操作和效果。在此,将不再详细描述已经关于根据本公开的第一实施例和第二实施例的电池模块10解释的特征。
本公开的第三实施例与第一实施例和第二实施例的不同之处在于,提供了框架400,并且将火焰蔓延防止构件200插入到框架400中。
参照图6和图7,框架400耦接至壳体300。例如,参照图7,如果成对地提供框架400,则基于图7,一对框架400可以分别耦接到壳体300的上侧和下侧,从而一对框架400的插入凹槽410彼此面对,但是本公开不限于此。框架400具有以预定间隔形成的多个插入凹槽410。这里,多个插入凹槽410可以形成在框架400中以具有相同的间隔,但是本公开不必限于相同的间隔。参照图6,火焰蔓延防止构件200可以形成为具有大致“l”形。将具有“l”形状的火焰蔓延防止构件200的两端插入分别耦接到壳体300的上侧和下侧的一对框架400的插入凹槽410中,并且具有“l”形状的火焰蔓延防止构件200可以耦接到一对框架400。另外,如果将具有“l”形状的多个火焰蔓延防止构件200耦接到框架400以具有预定间隔,则电池单元110介于彼此相邻的“I”形火焰蔓延防止构件200之间。在此,“l”形火焰蔓延防止构件200可以由云母板形成,该云母板包含具有绝热性和耐热性的云母,框架400也可以由云母板形成,该云母板包含具有绝热性和耐热性的云母。
以此方式,火焰蔓延防止构件200可以分别覆盖多个电池单元110,并且即使在多个电池单元110中的任何一个电池单元110中发生爆炸或着火,也可以防止火焰蔓延到其他电池单元110。
同时,根据本公开的实施例的电池组(未示出)可以包括如上所述的根据本公开的实施例的一个或多个电池模块10。另外,除了电池模块10之外,电池组(未示出)还可包括用于容纳电池模块10的外壳以及用于控制电池模块10的充电和放电的多种装置,例如BMS、电流传感器、保险丝等。
已经详细描述了本公开。然而,应当理解,详细说明和具体示例虽然指示了本公开的优选实施例,但是仅以说明的方式给出,因为本领域技术人员将从该详细描述明了在本公开的范围内的各种改变和修改。
工业适用性
本公开涉及一种电池模块和包括电池模块的电池组,并且尤其适用于有关二次电池的行业。
Claims (7)
1.一种电池模块,包括:
电池单元堆,其中堆叠有多个电池单元;
具有基本相同形状的多个火焰蔓延防止构件,每个火焰蔓延防止构件构造成覆盖每个电池单元的至少一部分;和
壳体,其构造成容纳由所述火焰蔓延防止构件覆盖的所述电池单元堆,
其中,所述电池单元的至少三个表面被所述火焰蔓延防止构件围绕,
在相邻的电池单元之间仅设置所述火焰蔓延防止构件。
2.根据权利要求1所述的电池模块,
其中所述火焰蔓延防止构件包括云母板,所述云母板包含具有绝热性和耐热性的云母。
3.根据权利要求1所述的电池模块,
其中在所述火焰蔓延防止构件中形成有中空部,以便将所述电池单元插入所述火焰蔓延防止构件中。
4.根据权利要求3所述的电池模块,
其中所述电池单元是具有矩形截面的袋型电池单元,并且所述火焰蔓延防止构件具有六面体形状。
5.根据权利要求1所述的电池模块,
其中所述电池单元是具有矩形截面的袋型电池单元,并且
其中所述火焰蔓延防止构件设置为覆盖所述袋型电池单元的两个壁。
6.根据权利要求5所述的电池模块,
其中所述火焰蔓延防止构件包括:
第一盖单元,其构造成覆盖所述袋型电池单元的第一壁;和
第二盖单元,其从所述第一盖单元弯曲以覆盖所述袋型电池单元的第二壁。
7.一种电池组,包括权利要求1至6中任一项所述的电池模块。
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2018
- 2018-02-06 KR KR1020180014621A patent/KR102282482B1/ko active IP Right Grant
- 2018-12-05 DE DE202018006877.2U patent/DE202018006877U1/de active Active
- 2018-12-05 CN CN201880038863.4A patent/CN110832664A/zh active Pending
- 2018-12-05 US US16/620,198 patent/US11777158B2/en active Active
- 2018-12-05 CN CN202310695894.XA patent/CN116646662A/zh active Pending
- 2018-12-05 WO PCT/KR2018/015343 patent/WO2019156324A1/ko unknown
- 2018-12-05 EP EP18904987.7A patent/EP3675209A4/en active Pending
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US11777158B2 (en) | 2023-10-03 |
WO2019156324A1 (ko) | 2019-08-15 |
JP2020524370A (ja) | 2020-08-13 |
JP7165687B2 (ja) | 2022-11-04 |
KR20190094921A (ko) | 2019-08-14 |
US20200099114A1 (en) | 2020-03-26 |
DE202018006877U1 (de) | 2024-01-09 |
CN110832664A (zh) | 2020-02-21 |
EP3675209A4 (en) | 2020-11-11 |
KR102282482B1 (ko) | 2021-07-26 |
EP3675209A1 (en) | 2020-07-01 |
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