CN101504888A - 蓄电装置 - Google Patents
蓄电装置 Download PDFInfo
- Publication number
- CN101504888A CN101504888A CNA200910008731XA CN200910008731A CN101504888A CN 101504888 A CN101504888 A CN 101504888A CN A200910008731X A CNA200910008731X A CN A200910008731XA CN 200910008731 A CN200910008731 A CN 200910008731A CN 101504888 A CN101504888 A CN 101504888A
- Authority
- CN
- China
- Prior art keywords
- lithium
- electrode collector
- storage device
- electrical storage
- electric conductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- 230000003068 static effect Effects 0.000 claims description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 133
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 41
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Images
Classifications
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Abstract
本发明提供一种蓄电装置,其使具有离子供给源的蓄电装置的制造作业简化。该蓄电装置具有由正极(14)和负极(15)层叠而成的电极层叠单元(12),在电极层叠单元的最外部设有锂电极(16)。正极具有正极集电体(20)和正极复合层(21),负极具有负极集电体(22)和负极复合层(23)。锂电极具有焊接在负极集电体上的锂电极集电体、和夹持在锂电极集电体和负极之间的锂单元(27)。锂单元由与锂电极集电体接触的锂保持板(27a)和设置在其上的锂离子供给源(27b)构成。由于没有在锂电极集电体上设置锂离子供给源,而是将锂电极集电体单独进行层叠并焊接,所以可以避免锂离子供给源的损伤,并实现制造作业的简化。
Description
技术领域
本发明涉及一种能够有效用于安装有离子供给源的蓄电装置的技术。
背景技术
作为搭载在电动车及混合动力车辆上的蓄电装置,存在锂离子电容器和锂离子二次电池等。另外,为了提高这些蓄电装置的能量密度,提出了一种蓄电装置,其在蓄电装置内装入作为离子供给源的金属锂箔,使负极与金属锂箔电化学接触。由此,可以从金属锂箔向负极掺杂锂离子。由此,可以使负极电位下降,电池电压上升。其结果,可以提高蓄电装置的能量密度(例如,参照专利文献1)。
另外,在将金属锂箔装入蓄电装置内时,通常在将金属锂箔切断为规定形状后,将其粘贴在锂电极集电体上。但是,单独对柔软且薄的金属锂箔进行切断是非常困难的。因此,为了实现金属锂箔的切断作业的容易化,提出了一种制造方法,其在将从辊中抽出的锂电极集电体与金属锂箔压接为一体后,将锂电极集电体和金属锂箔同时切断(例如,参照专利文献2)。
专利文献1:特开2006—286919号公报
专利文献2:特开2007—173615号公报
发明内容
但是,为了将金属锂箔装入蓄电装置内,不仅需要将切断后的金属锂箔粘贴在锂电极集电体上的作业,还需要将粘贴有金属锂箔的锂电极集电体焊接在负极集电体上的作业。在该焊接作业中,有时会使薄且柔软的金属锂箔破损。这一点成为蓄电装置的成本增加的主要原因。另外,金属锂箔容易与水发生反应。由此,对于将锂电极集电体焊接在负极集电体上的作业,必须在干燥室或氩气箱内进行作业。由此焊接作业变得繁杂。这一点也成为蓄电装置的成本增加的主要原因。
本发明的目的在于,通过实现具有离子供给源的蓄电装置的制造作业的简化,而实现蓄电装置的低成本化。
本发明的蓄电装置其具有正极和负极,该正极具有正极集电体和设置在该正极集电体上的正极复合层,该负极具有负极集电体和设置在该负极集电体上的负极复合层,其特征在于,该蓄电装置具有:第1导电体,其与所述正极集电体或所述负极集电体连接;以及第2导电体,其可自由拆卸地设置在所述第1导电体上,保持离子供给源,首先将所述第1导电体与所述正极集电体或所述负极集电体连接,然后经由所述第1导电体将所述第2导电体与所述正极集电体或所述负极集电体连接,使来自所述离子供给源的离子嵌入至所述正极复合层或所述负极复合层中。
本发明的蓄电装置的特征在于,所述第2导电体配置在所述第1导电体和与该第1导电体相对的所述正极或所述负极之间。
本发明的蓄电装置的特征在于,在所述正极集电体和所述负极集电体上形成通孔。
本发明的蓄电装置的特征在于,所述离子供给源是金属锂。
本发明的蓄电装置的特征在于,所述第1导电体和所述第2导电体使用相同材料而形成。
本发明的蓄电装置的特征在于,所述第1导电体和所述第2导电体使用与被嵌入离子的所述正极或所述负极的所述集电体相同的材料而形成。
本发明的蓄电装置的特征在于,所述第1导电体为表面具有凹凸的形状。
本发明的蓄电装置的特征在于,所述第1导电体是长方形或正方形。
本发明的蓄电装置的特征在于,在使所述正极和所述负极短路时的正极电位小于或等于2.0V(相对于Li/Li+)。
本发明的蓄电装置的特征在于,所述负极复合层中含有的负极活性物质与所述正极复合层中含有的正极活性物质相比,该负极活性物质的每单位重量的静电容量大于或等于该正极活性物质的3倍,并且正极活性物质重量比负极活性物质重量大。
发明的效果
在本发明中,设置有:第1导电体,其与正极集电体或负极集电体连接;以及第2导电体,其可自由拆卸地设置在第1导电体上,并保持离子供给源,经由上述第1导电体对上述第2导电体进行连接,向上述正极复合层或上述负极复合层中掺杂来自上述离子供给源的离子。由此,由于可以将锂电极集电体的焊接作业和锂离子供给源的配置作业分开,所以使安装在蓄电装置中的离子供给源的处理变得容易,可以降低蓄电装置的制造成本。
附图说明
图1是表示本发明的一个实施方式的蓄电装置的斜视图。
图2是沿图1的A—A线概略地表示蓄电装置的内部构造的剖面图。
图3是表示将蓄电装置的内部构造局部放大的剖面图。
图4是概略地表示蓄电装置的制造流程的流程图。
图5是表示锂电极集电体的制造过程的概略图。
图6是表示锂单元的制造过程的概略图。
图7是表示向电极层叠单元中安装锂单元时的流程的说明图。
图8是表示向电极层叠单元中安装锂单元时的流程的说明图。
图9是表示向电极层叠单元中安装锂单元时的流程的说明图。
图10是表示安装在本发明的其他实施方式的蓄电装置中的锂单元的斜视图。
具体实施方式
图1是表示本发明的一个实施方式的蓄电装置10的斜视图。图2是沿图1的A—A线概略地表示蓄电装置10的内部构造的剖面图。如图1及图2所示,在蓄电装置10的封装容器即层压薄膜11内收容有电极层叠单元12。该电极层叠单元12由隔着隔板13而交替层叠的正极14和负极15构成。另外,锂电极16隔着隔板13与负极15相对地配置在电极层叠单元12的最外部。由上述电极层叠单元12和锂电极16构成三极层叠单元17。此外,在层压薄膜11内注入有由含锂盐的非质子性有机溶剂构成的电解液。
图3是表示将蓄电装置10的内部构造局部放大的剖面图。如图3所示,正极14具有:正极集电体20,其上形成大量通孔20a;以及正极复合层21,其涂敷在该正极集电体20上。另外,负极15具有:负极集电体22,其上形成大量通孔22a;以及负极复合层23,其涂敷在该负极集电体22上。多个正极集电体20相互连接,并与正极端子24连接。正极端子24从层压薄膜11向外部突出。多个负极集电体22相互连接,并与负极端子25连接。负极端子25从层压薄膜11向外部突出。另外,配置在电极层叠单元12的最外部的锂电极16具有:作为第1导电体的锂电极集电体26,其与负极集电体22连接;以及锂单元27,其与锂电极集电体26接触。该锂单元27构成为具有:作为第2导电体的锂保持板27a,其与锂电极集电体26接触;以及锂离子供给源(离子供给源)27b,其粘贴在锂保持板27a上。锂离子供给源27b使用将金属锂较薄地延展后形成的金属锂箔。
在正极14的正极复合层21中,作为可以使锂离子和阴离子可逆地进行掺杂·脱附的正极活性物质而含有活性碳。负极15的负极复合层23中,作为可以使锂离子可逆地进行掺杂·脱附的负极活性物质而含有多并苯类有机半导体(PAS)。由于锂电极16与负极15电气连接,所以随着电解液的注入,从锂电极16向负极15掺杂锂离子。由于通过该掺杂可以使负极电位下降,而增大电池电压,所以可以提高蓄电装置10的能量密度。并且,在正极集电体20和负极集电体22上形成大量通孔20a、22a。通过这些通孔20a、22a,锂离子可以沿层叠方向移动。由此,可以对层叠的所有负极15顺利地掺杂锂离子。此外,在本发明中,掺杂(嵌入)是指吸收、承载、吸附、***等,是指锂离子等进入正极活性物质及负极活性物质的状态。另外,脱附(脱嵌)是指放出、脱离等,是指锂离子等离开正极活性物质及负极活性物质的状态。
另外,从实现蓄电装置10的高容量化的角度出发,将负极15中的锂离子的嵌入量设定为,使正极14和负极15之间短路后的正极电位小于或等于2.0V(相对于Li/Li+)。由于通过如上述所示设定锂离子的嵌入量,可以使用正极电位小于或等于3V的区域,因此可以实现蓄电装置10的高容量化。即,在现有的双电荷层电容器中,由于在放电时,正极电位下降至3V时负极电位上升至3V,所以在正极电位下降至3V的时刻放电结束。但是,通过向负极15嵌入锂离子,放电可以持续至正极电位小于或等于2V的区域。此外,在正极电位大于3V的区域,电位随着阴离子相对于正极14的嵌入·脱嵌而变化。另外,在正极电位小于或等于3V的区域,电位随着锂离子相对于正极14的嵌入·脱嵌而变化。
另外,从实现蓄电装置10的高容量化的角度出发,将负极活性物质的每单位重量的静电容量设定为大于或等于正极活性物质的每单位重量的静电容量的3倍。并且将正极活性物质重量设定为比负极活性物质重量大。即,由于通过将负极活性物质的每单位重量的静电容量设定为比正极活性物质大,可以抑制充放电时的负极15的电位变化量,因此可以使正极14的电位变化量增大。进而,由于负极活性物质的每单位重量的静电容量较大,所以可以在增加正极活性物质重量的同时减少负极活性物质重量。即,可以在抑制蓄电装置10的大型化的同时使蓄电装置10的静电容量以及电池容量增加。
下面,说明安装有锂电极16的蓄电装置10的制造流程。图4是概略地表示蓄电装置10的制造流程的流程图。如图4所示,在步骤S100中,将含有活性碳等的正极用浆料涂敷在正极集电体20上。由此,准备在正极集电体20的表面上形成有正极复合层21的正极14。相同地,在步骤S110中,将含有PAS等的负极用浆料涂敷在负极集电体22上。由此,准备在负极集电体22的表面上形成有负极复合层23的负极15。另外,在步骤S120中,将铜箔材料切割为规定形状。由此,准备用于构成锂电极16的锂电极集电体26。在这里,图5是表示锂电极集电体26的制造过程的概略图。如图5所示,使用规定的切断装置,从铜箔材料A上切出锂电极集电体26。锂电极集电体26形成为凸出形状,其具有长方形的接触部26a及从接触部26a一端延伸的焊接部26b。此外,将焊接部26b的宽度尺寸设定为比负极端子25的宽度尺寸小。另外,正极集电体20及负极集电体22也形成为与锂电极集电体26相同的凸出形状。
另外,如图4所示,在步骤S130中,执行电极层叠处理。在这里,以正极集电体20的焊接部20b与负极集电体22的焊接部22b彼此位于相反侧的方式,将正极14和负极15隔着隔板13层叠。另外,在该电极层叠处理中,与配置在最外部的负极15相对地,隔着隔板13层叠锂电极集电体26。然后,在步骤S140中,对正极集电体20的焊接部20b进行电阻焊接处理,以使多片正极集电体20相互连接。对负极集电体22的焊接部22b和锂电极集电体26的焊接部26b进行电阻焊接处理,以使多片负极集电体22和锂电极集电体26相互连接。
另外,在步骤S150中,将铜箔材料A与金属锂箔材料B叠放并进行切断。由此,准备锂单元27,其具有锂保持板27a和粘贴在锂保持板27a上的锂离子供给源27b。在这里,图6是表示锂单元27的制造过程的概略图。如图6所示,在用于形成锂保持板27a的铜箔材料A上叠放用于形成锂离子供给源27b的金属锂箔材料B,利用辊式压制机等进行压接。将压接后的铜箔材料A和金属锂箔材料B一起切断为长方形状。由此制作锂单元27。这样,通过将铜箔材料A与金属锂箔材料B叠放后进行切断,可以将铜箔材料A和金属锂箔材料B一起切断,同时可以容易地切断柔软的金属锂箔材料B。因此,可以降低锂单元27的加工成本。
然后,在步骤S160中,将锂单元27安装至电极层叠单元12中。在这里,图7~图8是表示向电极层叠单元12中安装锂单元27时的流程的说明图,对图4所示的步骤S140、S160的流程进行图示。首先,如图7所示,与位于电极层叠单元12的最外部的负极15相对地配置锂电极集电体26。然后,对于叠放的负极集电体22的焊接部和锂电极集电体26的焊接部,如箭头所示加压而进行电阻焊接。然后,如图8所示,将一端焊接在负极集电体22上的锂电极集电体26掀起,以使锂电极集电体26和锂保持板27a相对的方式,将锂单元27***至负极15和锂电极集电体26之间。然后,如图9所示,将被掀起的锂电极集电体26复原,而与锂保持板27a接触。由此,形成锂单元27夹持在锂电极集电体26和负极15之间的状态。这样,通过夹持锂单元27,锂离子供给源27b与负极15经由锂保持板27a及锂电极集电体26电气连接。由此,随着电解液的注入,从锂离子供给源27b向负极15掺杂锂离子。
如上述所示,分别设置与负极集电体22进行电阻焊接的锂电极集电体26、和保持锂离子供给源27b的锂保持板27a。因此,蓄电装置10中安装的锂离子供给源27b的处理变得容易。由此,可以降低蓄电装置10的制造成本。即,在现有的蓄电装置中构成为,在将锂离子供给源粘贴在锂电极集电体上后,将该锂电极集电体叠放在电极层叠单元上并进行电阻焊接。因此,必须在注意不会损伤锂离子供给源的同时对锂电极集电体进行处理。但是,在本发明的蓄电装置10中,没有将锂离子供给源27b粘贴在锂电极集电体26上。由此,可以简单地处理锂电极集电体26,而无需考虑锂离子供给源27b的损伤。另外,构成为将可能与水发生反应的锂离子供给源27b在后续步骤中进行夹持。因此,可以在通常气氛下执行在图4中以点划线示出的锂电极集电体26的层叠工序及焊接工序等。由此,可以抑制在干燥室或氩气箱中进行的作业。由此,可以进一步降低制造成本。并且,在制造过程中不会导致锂离子供给源27b损伤或老化。因此,可以使蓄电装置10的品质稳定。
另外,在本发明中,分开设置锂电极集电体和锂保持板。因此,可以将锂电极集电体和锂保持板的形状设定为长方形等简单的形状。在这里,图10是表示本发明的其他实施方式的蓄电装置中安装的锂单元30的斜视图。此外,对于与图6所示的部件相同的部件,标注相同的标号,省略其说明。如图10所示,锂电极集电体31只要具有可以与负极集电体22连接的形状即可。另外,锂保持板27a只要具有可以保持锂离子供给源27b的形状即可。因此,可以将它们分别切割成长方形或正方形。由此,不需要复杂的切断装置。而且,可以从材料中高利用率地切出锂电极集电体31及锂保持板27a。因此,可以降低锂电极集电体31及锂保持板27a的制造成本。
此外,锂保持板27a可自由拆卸地设置在锂电极集电体26上。即,锂电极集电体26和锂保持板27a并不相互固定,而仅处于接触的状态。但是,由于以真空状态将三极层叠单元17封入层压薄膜11内,所以可以利用大气压使锂电极集电体26和锂保持板27a相互按压,从而良好地保持锂电极集电体26和锂保持板27a之间的导通状态。另外,由于在锂电极集电体26和锂保持板27a之间没有进行焊接等,而是仅单纯进行接触的结构,所以可以实现制造作业的简化。
以下,对上述蓄电装置的构成要素按如下顺序进行详细说明。[A]正极,[B]负极,[C]负极集电体以及正极集电体,[D]隔板,[E]锂电极,[F]电解液,[G]封装容器。
[A]正极
正极具有正极集电体和涂敷在其上的正极复合层。正极复合层中含有正极活性物质。作为正极活性物质,只要可以使离子可逆地嵌入·脱嵌即可,不特别限定。例如为活性碳、过渡金属氧化物、导电性高分子、多并苯类物质等。
例如,活性碳优选由经过碱性活化处理、且比表面积大于或等于600m2/g的活性碳颗粒形成。作为活性碳的原料,使用酚醛树脂、石油沥青、石油焦炭、椰炭、煤炭类焦炭等。酚醛树脂、煤炭类焦炭可以提高比表面积,因而优选。在上述活性碳的碱性活化处理中使用的碱性活化剂,优选锂、钠、钾等金属离子的盐类或氢氧化物。其中,优选氢氧化钾。碱性活化的方法可以举出,例如,通过将碳化物和活性剂混合后,在惰性气体的气流中加热而进行活化的方法。另外,举出通过使活性碳原材料预先吸附活性剂后加热而进行碳化以及活化工序的方法。另外,还可以举出将碳化物用水蒸气等的气体活化法活化后,利用碱性活化剂进行表面处理的方法。将经过这样的碱性活化处理后的活性碳,使用球磨机等已知的粉碎机进行粉碎。作为活性碳粒度,可以使用通常使用的较宽范围内的粒度。例如,D50大于或等于2μm,优选2~50μm,特别优选2~20μm。另外,优选平均细孔直径小于或等于10nm,比表面积为600~3000m2/g的活性碳。其中,优选大于或等于800m2/g,特别优选1300~2500m2/g。
另外,为了实现正极复合层的高容量化,可以使用五氧化二钒(V2O5)或钴酸锂(LiCoO2)作为正极活性物质。此外,也可以使用LixCoO2、LixNiO2、LixMnO2、LixFeO2等以LixMyOz(x、y、z为正数,M为金属,也可以是大于或等于2种金属)这一通式表示的含锂金属氧化物,或者也可以使用钴、锰、钒、钛、镍等过渡金属的氧化物或者钴、锰、钒、钛、镍等过渡金属的硫化物。特别地,在需要高电压的情况下,优选使用相对于金属锂的电位大于或等于4V的含锂氧化物。特别优选例如含锂的钴氧化物、含锂的镍氧化物、或者含锂的钴—镍复合氧化物。
上述活性碳等正极活性物质形成为粉末状、颗粒状、短纤维状等。将该正极活性物质与粘结剂混合后形成浆料。接下来,通过将含有正极活性物质的浆料涂敷在正极集电体上并干燥,从而在正极集电体上形成正极复合层。此外,作为与正极活性物质混合的粘结剂,可以使用例如SBR等橡胶类粘结剂,聚四氟乙烯、聚偏氟乙烯等含氟类树脂,聚丙烯、聚乙烯、聚丙烯酸酯等热塑性树脂。另外,正极复合层中还可以适当添加乙炔黑、石墨、金属粉末等导电性材料。
[B]负极
负极具有负极集电体和涂敷在其上的负极复合层。负极复合层中含有负极活性物质。作为该负极活性物质,只要可以使离子可逆地嵌入.脱嵌即可,不特别限定。例如为包含石墨、难石墨化碳(hardcarbon)或多并苯类物质在内的各种碳材料、锡的氧化物、硅的氧化物等。由于石墨及难石墨化碳可以实现高容量化,所以优选作为负极活性物质。由于芳香族缩聚物的热处理物中,氢原子/碳原子的原子数比(H/C)大于或等于0.05而小于或等于0.50,且具有多并苯类骨骼构造的多并苯类有机半导体(PAS)可以实现高容量化,所以优选作为负极活性物质。优选该PAS的H/C落入大于或等于0.05而小于或等于0.50的范围内。由于在PAS的H/C大于0.50的情况下,芳香族类多环构造不能充分形成,所以不能使锂离子顺利地嵌入·脱嵌,有可能会使蓄电装置10的充放电效率降低。在PAS的H/C小于0.05的情况下,可能导致蓄电装置的容量降低。
上述PAS等负极活性物质形成为粉末状、粒状、短纤维状等。将该负极活性物质与粘结剂混合后形成浆料。然后,通过将含有负极活性物质的浆料涂敷在负极集电体上并干燥,从而在负极集电体上形成负极复合层。此外,作为与负极活性物质混合的粘结剂,可以使用例如聚四氟乙烯、聚偏氟乙烯等含氟类树脂,聚丙烯、聚乙烯、聚丙烯酸酯等热塑性树脂,以及丁苯橡胶(SBR)等橡胶类粘结剂。其中优选使用氟类粘结剂。作为该氟类粘合剂,例如可以举出聚偏氟乙烯、偏氟乙烯-3氟化乙烯共聚物、乙烯-4氟化乙烯共聚物、丙稀-4氟化乙烯共聚物等。另外,负极复合层中还可以适当添加乙炔黑、石墨、金属粉末等导电性材料。
[C]正极集电体及负极集电体
作为正极集电体及负极集电体,优选其具有贯穿集电体正反表面的通孔,可以举出例如膨胀金属、冲压金属、蚀刻箔、网、发泡体等。对于通孔的形状及个数等,不特别限定。只要不阻碍阴离子及锂离子的移动即可,可以适当地进行设定。另外,作为正极集电体及负极集电体的材料,可以使用通常针对电池或电容器提出的各种材料。例如,作为正极集电体的材料,可以使用铝、不锈钢等。作为负极集电体的材料,可以使用不锈钢、铜、镍等。
[D]锂电极
作为锂电极集电体及锂保持板的材料,可以使用通常针对电池或电容器的集电体提出的各种材料。作为上述材料,可以使用不锈钢、铜、镍等。对于相互接触而使用的锂电极集电体和锂保持板,优选使用相同材料形成,以使得在它们之间不产生电位差。更优选与作为连接对象的负极集电体及正极集电体的材料配合。另外,作为锂电极集电体及锂保持板,还可以使用膨胀金属、冲压金属、蚀刻箔、网、发泡体等具有贯穿其正反表面的通孔的材料。特别地,在锂电极集电体使用膨胀金属等表面具有凹凸形状的材料的情况下,在接触时表面的凸部容易咬入锂保持板中,可以良好地保持连接状态(导电状态)。另外,作为粘贴在锂保持板上的锂离子供给源的材料,只要是可以放出锂离子的材料即可。不仅可以使用金属锂,还可以使用锂—铝合金等。
[E]隔板
作为隔板,可以使用相对于电解液、正极活性物质、负极活性物质等具有耐久性,并且具有连通气孔而无导电性的多孔体等。通常,使用由纸(纤维素)、玻璃纤维、聚乙烯或聚丙烯等制成的布、无纺布或多孔体。优选隔板的厚度较薄,以减小电池的内部电阻。隔板的厚度可以考虑电解液的保持量及隔板强度等进行适当设定。
[F]电解液
作为电解液,从即使在高电压下也不会引起电解这一点,锂离子能够稳定存在这一点来说,优选使用含有锂盐的非质子性有机溶剂。作为非质子性有机溶剂,例如,可以举出由碳酸乙二酯、碳酸丙烯酯、碳酸二甲酯、碳酸二乙酯、γ-丁内酯、乙腈、二甲氧乙烷、四氢呋喃、二氧戊环、二氯甲烷、环丁砜等单独或混合而形成的溶剂。另外,作为锂盐可以举出,例如LiClO4、LiAsF6、LiBF4、LiPF6、LiN(C2F5SO2)2等。另外,为了减少由于电解液造成的内部电阻,优选电解液中的电解质浓度至少大于或等于0.1mol/L。特别优选落在0.5~1.5mol/L范围内。
[G]封装容器
作为封装容器,可以使用通常在电池中使用的各种材质。也可以使用铁及铝等金属材料、树脂薄膜等。另外,对于封装容器的形状也不特别限定。可以根据用途适当选择圆筒型或方型等。从蓄电装置的小型化及轻量化的角度出发,优选使用由铝层压薄膜制成的薄膜型封装容器。通常,使用3层层压薄膜,其外侧具有尼龙薄膜,中心具有铝箔,内侧具有改性聚丙烯等粘结层。
本发明并不限定于上述实施方式,可以在不脱离其主旨的范围内进行各种变更。例如,在上述说明中,向负极嵌入锂离子,但并不限于此,也可以通过将锂电极集电体焊接在正极集电体上,而向正极嵌入锂离子。另外,也可以通过设置焊接在负极集电体上的锂电极集电体和焊接在正极集电体上的锂电极集电体,向正极和负极这两者嵌入锂离子。另外,在图示的情况中,针对层叠型的蓄电装置应用本发明,但并不限于此,也可以针对卷绕型的蓄电装置应用本发明。
Claims (10)
1.一种蓄电装置,其具有正极和负极,该正极具有正极集电体和设置在该正极集电体上的正极复合层,该负极具有负极集电体和设置在该负极集电体上的负极复合层,
其特征在于,该蓄电装置具有:
第1导电体,其与所述正极集电体或所述负极集电体连接;以及
第2导电体,其可自由拆卸地设置在所述第1导电体上,保持离子供给源,
首先将所述第1导电体与所述正极集电体或所述负极集电体连接,然后经由所述第1导电体将所述第2导电体与所述正极集电体或所述负极集电体连接,使来自所述离子供给源的离子嵌入至所述正极复合层或所述负极复合层中。
2.根据权利要求1所述的蓄电装置,其特征在于,
所述第2导电体配置在所述第1导电体和与该第1导电体相对的所述正极或所述负极之间。
3.根据权利要求1或2所述的蓄电装置,其特征在于,
在所述正极集电体和所述负极集电体上形成通孔。
4.根据权利要求1或2所述的蓄电装置,其特征在于,
所述离子供给源是金属锂。
5.根据权利要求1或2所述的蓄电装置,其特征在于,
所述第1导电体和所述第2导电体使用相同材料而形成。
6.根据权利要求1或2所述的蓄电装置,其特征在于,
所述第1导电体和所述第2导电体使用与被嵌入离子的所述正极或所述负极的所述集电体相同的材料而形成。
7.根据权利要求1或2所述的蓄电装置,其特征在于,
所述第1导电体为表面具有凹凸的形状。
8.根据权利要求1或2所述的蓄电装置,其特征在于,
所述第1导电体是长方形或正方形。
9.根据权利要求1或2所述的蓄电装置,其特征在于,
在使所述正极和所述负极短路时的正极电位小于或等于2.0V,该正极电位是相对于Li/Li+的电位。
10.根据权利要求1或2所述的蓄电装置,其特征在于,
所述负极复合层中含有的负极活性物质与所述正极复合层中含有的正极活性物质相比,该负极活性物质的每单位重量的静电容量大于或等于该正极活性物质的3倍,并且正极活性物质重量比负极活性物质重量大。
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100285358A1 (en) | 2009-05-07 | 2010-11-11 | Amprius, Inc. | Electrode Including Nanostructures for Rechargeable Cells |
US20140370380A9 (en) * | 2009-05-07 | 2014-12-18 | Yi Cui | Core-shell high capacity nanowires for battery electrodes |
US8450012B2 (en) | 2009-05-27 | 2013-05-28 | Amprius, Inc. | Interconnected hollow nanostructures containing high capacity active materials for use in rechargeable batteries |
US20100330419A1 (en) * | 2009-06-02 | 2010-12-30 | Yi Cui | Electrospinning to fabricate battery electrodes |
US9172088B2 (en) | 2010-05-24 | 2015-10-27 | Amprius, Inc. | Multidimensional electrochemically active structures for battery electrodes |
US9780365B2 (en) | 2010-03-03 | 2017-10-03 | Amprius, Inc. | High-capacity electrodes with active material coatings on multilayered nanostructured templates |
CN102884658B (zh) * | 2010-03-22 | 2016-09-07 | 安普瑞斯股份有限公司 | 互连的电化学活性材料纳米结构 |
JP5604982B2 (ja) * | 2010-05-26 | 2014-10-15 | アイシン精機株式会社 | リチウムイオンキャパシタ用負極材料、その製造方法およびリチウムイオンキャパシタ |
JP2011249507A (ja) * | 2010-05-26 | 2011-12-08 | Aisin Seiki Co Ltd | 高性能キャパシタおよび高性能キャパシタ用負極材料のドープ方法 |
KR101139426B1 (ko) * | 2010-09-28 | 2012-04-27 | 한국에너지기술연구원 | 리튬 이온 커패시터 |
WO2012067943A1 (en) | 2010-11-15 | 2012-05-24 | Amprius, Inc. | Electrolytes for rechargeable batteries |
US20160077074A1 (en) | 2011-12-21 | 2016-03-17 | The Regents Of The University Of California | Interconnected corrugated carbon-based network |
KR20130085572A (ko) * | 2011-12-22 | 2013-07-30 | 삼성전기주식회사 | 캐패시터 및 캐패시터 제조방법 |
AU2013230195B2 (en) | 2012-03-05 | 2017-04-20 | The Regents Of The University Of California | Capacitor with electrodes made of an interconnected corrugated carbon-based network |
JP6134108B2 (ja) * | 2012-08-28 | 2017-05-24 | シャープ株式会社 | 金属空気電池 |
US9620808B2 (en) * | 2013-03-11 | 2017-04-11 | California Institute Of Technology | Method and device for dendrite research and discovery in batteries |
US9923201B2 (en) | 2014-05-12 | 2018-03-20 | Amprius, Inc. | Structurally controlled deposition of silicon onto nanowires |
EA201790003A1 (ru) | 2014-06-16 | 2019-07-31 | Дзе Риджентс Ов Зе Юниверсити Ов Калифорния | Гибридный гальванический элемент |
BR112017010257B8 (pt) | 2014-11-18 | 2023-10-31 | Univ California | Compósito de rede à base de carbono corrugado interligado poroso (iccn), e, método para produzir o compósito |
JP6871676B2 (ja) * | 2015-11-26 | 2021-05-12 | 株式会社ジェイテクト | 蓄電デバイス及び蓄電デバイスの製造方法 |
CA3006997A1 (en) | 2015-12-22 | 2017-06-29 | The Regents Of The University Of California | Cellular graphene films |
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Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55122372A (en) * | 1979-03-15 | 1980-09-20 | Shin Kobe Electric Mach Co Ltd | Production of storage battery |
US6168885B1 (en) * | 1998-08-21 | 2001-01-02 | Sri International | Fabrication of electrodes and devices containing electrodes |
JP2001244152A (ja) * | 2000-03-01 | 2001-09-07 | Meidensha Corp | 電気二重層キャパシタの製造方法 |
CA2415881A1 (en) * | 2002-01-02 | 2003-07-02 | Wilson Greatbatch Technologies, Inc. | Dual chemistry electrode design |
AU2003292781A1 (en) * | 2002-12-26 | 2004-07-22 | Fuji Jukogyo Kabushiki Kaisha | Electrical storage device and method for manufacturing electrical storage device |
JP4894129B2 (ja) * | 2003-10-10 | 2012-03-14 | 日産自動車株式会社 | 薄型電池及び組電池 |
JP2006286919A (ja) * | 2005-03-31 | 2006-10-19 | Fuji Heavy Ind Ltd | リチウムイオンキャパシタ |
JP4731967B2 (ja) * | 2005-03-31 | 2011-07-27 | 富士重工業株式会社 | リチウムイオンキャパシタ |
JP4842633B2 (ja) | 2005-12-22 | 2011-12-21 | 富士重工業株式会社 | 電池又はキャパシタ用リチウム金属箔の製造方法 |
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CN110291661A (zh) * | 2017-02-22 | 2019-09-27 | 远景Aesc能源元器件有限公司 | 锂离子电池 |
CN110291661B (zh) * | 2017-02-22 | 2022-06-17 | 远景Aesc日本有限公司 | 锂离子电池 |
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EP2088637A2 (en) | 2009-08-12 |
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