JP2010257860A5 - - Google Patents
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- JP2010257860A5 JP2010257860A5 JP2009108725A JP2009108725A JP2010257860A5 JP 2010257860 A5 JP2010257860 A5 JP 2010257860A5 JP 2009108725 A JP2009108725 A JP 2009108725A JP 2009108725 A JP2009108725 A JP 2009108725A JP 2010257860 A5 JP2010257860 A5 JP 2010257860A5
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 88
- 229910021389 graphene Inorganic materials 0.000 description 77
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 44
- 239000002184 metal Substances 0.000 description 27
- 229910052751 metal Inorganic materials 0.000 description 27
- 229910052759 nickel Inorganic materials 0.000 description 22
- 229910052799 carbon Inorganic materials 0.000 description 11
- 238000003466 welding Methods 0.000 description 10
- 239000012535 impurity Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000003825 pressing Methods 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 229910001339 C alloy Inorganic materials 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- -1 silver carbon Chemical compound 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000952 Be alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Description
本発明は、溶接を使用せず、酸化し難い形態で、電池セル同士を高導電効率に接続可能な高導電効率接続構造に関するものである。 The present invention relates to a high conductivity connection structure that can connect battery cells to each other with high conductivity efficiency in a form that does not use welding and is not easily oxidized.
従来、高容量電池の構成方式は、金属製の連接片を介して複数の電池セルを、直列接続し、並列接続し、又は直列接続及び並列接続を混合に施すことにより、高容量電池を構成することが多い。前記電池セルの正極と負極との金属電極は、ニッケルを含有する金属で作製されることが一般的である。ニッケルを含有する金属を使用する原因は、ニッケルが酸化し難くて安定性が良いことにある。従来の複数の電池セルを電気的に連接する工程は、図１及び図２に示すように、直列接続にしても、並列接続にしても、金属製の連接片１０が電気溶接によって電池セル１１の金属電極１２に電気的に連接され、連接片１０と金属電極１２の溶接点１３が電気的に緊密に連結するので、連接片１０と金属電極１２の間の電気抵抗が低減される。 Conventionally, a high-capacity battery has a configuration method in which a plurality of battery cells are connected in series via metal connecting pieces, connected in parallel, or mixed in series and parallel. Often to do. The metal electrodes of the positive electrode and the negative electrode of the battery cell are generally made of a metal containing nickel. The reason for using nickel-containing metal is that nickel is difficult to oxidize and has good stability. As shown in FIG. 1 and FIG. 2, the process of electrically connecting a plurality of conventional battery cells may be performed in series connection or in parallel connection. Since the welding point 13 of the connecting piece 10 and the metal electrode 12 is electrically connected closely to each other, the electric resistance between the connecting piece 10 and the metal electrode 12 is reduced.
しかし、上記のような連接方法によれば、電池セル同士を電気的に連接することができるが、下記のような欠点があった。
（１）長期間に使用されると、連接片と溶接点とには、金属が酸化し、又は不純物が付着され、連接片の電気抵抗が増加する。
However, according to the above connection method, the battery cells can be electrically connected to each other, but there are the following drawbacks.
(1) When used for a long period of time, metal is oxidized or impurities are attached to the connecting piece and the welding point, and the electric resistance of the connecting piece increases.
（２）連接片と電池電極がスポット溶接によって電気的に連接するので、接触点の面積が小さくてインピーダンスが大きいので、電池を充放電しているときに、高インピーダンスにより電池電極と溶接部位での温度が上昇し、電力が無駄に消耗される。 (2) Since the connecting piece and the battery electrode are electrically connected by spot welding, the area of the contact point is small and the impedance is large. Therefore, when charging / discharging the battery, the battery electrode and the welded part are high impedance. The temperature rises and power is wasted.
（３）ニッケルを含有する金属片は、材料コストが高く、電気溶接加工には工数が掛かり、このような金属片の使用は経済的ではない。 (3) The metal piece containing nickel has a high material cost, and the electric welding process requires a lot of man-hours, and the use of such a metal piece is not economical.
本発明の主な目的は、グラフェン連接ブロックにより、電池セル同士を直列接続し、又は並列接続し、グラフェン連接ブロックが電池電極と直接に電気的に連接し、溶接工程を使用しないので、電池セル同士の間の導電効率が向上し、且つグラフェンの材料コストが低いため、生産コストを低減することができる高導電効率接続構造を提供することにある。 The main object of the present invention is to connect the battery cells in series or in parallel with the graphene connecting block, and the graphene connecting block is directly electrically connected to the battery electrode and does not use a welding process. An object of the present invention is to provide a highly conductive connection structure that can reduce the production cost because the conductive efficiency between them is improved and the material cost of graphene is low.
本発明の次の目的は、グラフェン連接ブロックにより、電池セル同士を直列接続し、又は並列接続し、グラフェン連接ブロックが酸化し難く、グラフェン連接ブロックがニッケルを含有する金属で作製された、電池正極電極と、電池負極電極とに接触すると、両方には溶解現象が発生され、すなわち、グラフェン連接ブロックの炭素微粒が電池正極電極及び電池負極電極の表面にある不純物を取り替えることにより、グラフェン連接ブロックの炭素微粒が電池正極電極及び電池負極電極の表面の窪みに位置し、炭素とニッケルが溶解して合金状態になり、そうすると、高インピーダンスによる大電流の放電ができない問題を解決可能である高導電効率接続構造を提供することにある。 The next object of the present invention is a battery positive electrode in which battery cells are connected in series or connected in parallel by a graphene connecting block, the graphene connecting block is hardly oxidized, and the graphene connecting block is made of a metal containing nickel. When the electrode contacts the battery negative electrode, a dissolution phenomenon occurs in both, that is, the carbon particles of the graphene connecting block replace impurities on the surface of the battery positive electrode and the battery negative electrode, thereby Carbon fine particles are located in the depressions on the surface of the battery positive electrode and battery negative electrode, and the carbon and nickel dissolve into an alloy state, which can solve the problem that large current cannot be discharged due to high impedance. It is to provide a connection structure.
本発明の請求項１に記載の高導電効率直列接続構造によると、グラフェンにより電池セル同士を高導電効率に直列接続し、第一電池セルと、少なくとも一つのグラフェン連接ブロックと、第二電池セルと、を含む高導電効率直列接続構造において、前記第一電池セルは、その外部には、ニッケルを含有する金属で作製された、正極電極と、負極電極と、が設けられ、前記正極電極と前記負極電極が前記第一電池セルの電力出力端とされ、前記グラフェン連接ブロックは、前記第一電池セルの前記負極電極に電気的に連接され、前記第二電池セルは、その外部には、ニッケルを含有する金属で作製された、正極電極と、負極電極と、が設けられ、前記正極電極と前記負極電極が前記第二電池セルの電力出力端とされ、前記第二電池セルの前記正極電極が前記グラフェン連接ブロックに電気的に連接され、これにより、前記第一電池セルと前記第二電池セルが直列接続するようになることを特徴とする高導電効率直列接続構造である。 According to the highly conductive efficiency series connection structure of claim 1 of the present invention, battery cells are connected in series with high conductivity efficiency by graphene, the first battery cell, at least one graphene connection block, and the second battery cell And the first battery cell is provided with a positive electrode and a negative electrode made of a metal containing nickel on the outside of the first battery cell, and the positive electrode The negative electrode is the power output terminal of the first battery cell, the graphene connection block is electrically connected to the negative electrode of the first battery cell, and the second battery cell A positive electrode and a negative electrode made of a metal containing nickel are provided, the positive electrode and the negative electrode are used as power output terminals of the second battery cell, and the positive electrode of the second battery cell is provided. Electrode electrically connected to the graphene connecting block, thereby, the first battery cell and the second battery cell is highly electrically efficient series-connection structure, characterized in that become connected in series.
本発明の請求項２に記載の高導電効率並列接続構造によると、グラフェンにより電池セル同士を高導電効率に並列接続し、第三電池セルと、少なくとも一つの第一グラフェン連接ブロックと、第四電池セルと、少なくとも一つの第二グラフェン連接ブロックと、を含む高導電効率並列接続構造において、前記第三電池セルは、その外部には、ニッケルを含有する金属で作製された、正極電極と、負極電極と、が設けられ、前記正極電極と前記負極電極が前記第三電池セルの電力出力端とされ、前記第一グラフェン連接ブロックは、前記第三電池セルの前記正極電極に電気的に連接され、前記第四電池セルは、その外部には、ニッケルを含有する金属で作製された、正極電極と、負極電極と、が設けられ、前記正極電極と前記負極電極が前記第四電池セルの電力出力端とされ、前記第四電池セルの前記正極電極が前記第一グラフェン連接ブロックに電気的に連接され、前記第二グラフェン連接ブロックは、前記第三電池セルの前記負極電極と、前記第四電池セルの前記負極電極と、に電気的に連接され、これにより、前記第三電池セルと前記第四電池セルが並列接続するようになることを特徴とする高導電効率並列接続構造である。 According to the high conductivity efficiency parallel connection structure of claim 2 of the present invention, battery cells are connected in parallel with high conductivity efficiency by graphene, a third battery cell, at least one first graphene connection block, and a fourth In a high conductivity efficiency parallel connection structure including a battery cell and at least one second graphene connecting block, the third battery cell is externally formed of a metal containing nickel, a positive electrode, A negative electrode, and the positive electrode and the negative electrode serve as a power output terminal of the third battery cell, and the first graphene connection block is electrically connected to the positive electrode of the third battery cell. The fourth battery cell is provided with a positive electrode and a negative electrode made of a metal containing nickel on the outside, and the positive electrode and the negative electrode are provided in the first battery cell. A power output terminal of the battery cell, the positive electrode of the fourth battery cell is electrically connected to the first graphene connection block, and the second graphene connection block is connected to the negative electrode of the third battery cell. The high-conductivity-efficient parallel connection, wherein the third battery cell and the fourth battery cell are electrically connected to the negative electrode of the fourth battery cell, whereby the third battery cell and the fourth battery cell are connected in parallel. Structure.
本発明の請求項３に記載の高導電効率直列接続構造によると、前記グラフェン連接ブロックは、純グラフェンでもいいし、合金グラフェンでもよい。 According to the highly conductive efficiency series connection structure according to claim 3 of the present invention, the graphene connecting block may be pure graphene or alloy graphene.
本発明の請求項４に記載の高導電効率直列接続構造によると、前記合金グラフェンは、銀炭素合金グラフェンでもいいし、銅炭素合金グラフェンでもよい。 According to the high conductivity efficiency series connection structure of claim 4 of the present invention, the alloy graphene may be silver carbon alloy graphene or copper carbon alloy graphene.
本発明の請求項５に記載の高導電効率直列接続構造によると、バネと押付板とに付勢されている前記グラフェン連接ブロックは、前記第一電池セルと前記第二電池セルとに緊密に接触する。 According to the highly conductive efficiency series connection structure according to claim 5 of the present invention, the graphene connecting block biased by the spring and the pressing plate is tightly connected to the first battery cell and the second battery cell. Contact.
本発明の請求項６に記載の高導電効率直列接続構造によると、前記第一電池セルの前記負極電極には、前記第一電池セルの電力最終出力端とするグラフェン端子が電気的に連接され、前記第二電池セルの前記正極電極には、前記第二電池セルの電力最終出力端とするグラフェン端子が電気的に連接され、電力出力リードとするリードは、成形プロセスにおいて、前記グラフェン端子に作り込まれる。 According to the high-conductivity-efficiency series connection structure according to claim 6 of the present invention, the negative electrode of the first battery cell is electrically connected to the graphene terminal serving as the power final output terminal of the first battery cell. The positive electrode of the second battery cell is electrically connected to a graphene terminal serving as a power final output terminal of the second battery cell, and the lead serving as a power output lead is connected to the graphene terminal in a molding process. Built.
本発明の高導電効率接続構造によれば、次のような効果がある。
（１）グラフェン連接ブロックにより、電池セル同士を直列接続し、又は並列接続し、グラフェン連接ブロックが電池電極と直接に電気的に連接し、溶接工程を使用しないので、電池セル同士の間の導電効率が向上し、且つグラフェンの材料コストが低いため、生産コストを低減することができる。
According to the high conductive efficiency connection structure of the present invention, there are the following effects.
(1) The battery cells are connected in series or connected in parallel by the graphene connection block, and the graphene connection block is electrically connected directly to the battery electrode, and the welding process is not used. Since the efficiency is improved and the material cost of graphene is low, the production cost can be reduced.
（２）グラフェン連接ブロックにより、電池セル同士を直列接続し、又は並列接続し、グラフェン連接ブロックが酸化せず、グラフェン連接ブロックがニッケルを含有する金属で作製された、電池正極電極と、電池負極電極とに接触すると、両方には溶解現象が発生され、すなわち、グラフェン連接ブロックの炭素微粒が電池正極電極及び電池負極電極の表面にある不純物を取り替ることにより、グラフェン連接ブロックの炭素微粒が電池正極電極及び電池負極電極の表面の窪みに位置し、炭素とニッケルが溶解して合金状態になり、そうすると、ハイインピーダンスによる大電流の放電ができない問題を解決可能である。 (2) Battery positive electrode and battery negative electrode in which battery cells are connected in series or connected in parallel by a graphene connecting block, the graphene connecting block is not oxidized, and the graphene connecting block is made of a metal containing nickel When in contact with the electrode, a dissolution phenomenon occurs in both, that is, the carbon particles in the graphene connecting block replace the impurities on the surface of the battery positive electrode and the battery negative electrode, so that the carbon particles in the graphene connecting block are in the battery. Positioned in the depressions on the surface of the positive electrode and the negative electrode of the battery, carbon and nickel are dissolved to be in an alloy state, which can solve the problem that high current cannot be discharged due to high impedance.
以下、本発明の実施の形態を図面に基づいて説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
まず、図３を参照する。図３は本発明に係る第一電池セルと第二電池セルとが少なくとも一つのグラフェン連接ブロックにより直列接続された状態を示す模式図であり、そうすると、第一電池セルと第二電池セルの間の導電効率が増加する。 First, referring to FIG. FIG. 3 is a schematic view showing a state in which the first battery cell and the second battery cell according to the present invention are connected in series by at least one graphene connecting block, and then, between the first battery cell and the second battery cell. The conduction efficiency increases.
前記第一電池セル２０は、円筒形状を呈し、その外部の両端には、ニッケルを含有する金属で作製された、正極電極２１と、負極電極２２と、がそれぞれ設けられ、正極電極２１と負極電極２２が第一電池セル２０の電力出力端とされる。 The first battery cell 20 has a cylindrical shape, and a positive electrode 21 and a negative electrode 22 made of a metal containing nickel are provided at both ends of the first battery cell 20, respectively. The positive electrode 21 and the negative electrode The electrode 22 is the power output terminal of the first battery cell 20.
前記グラフェン連接ブロック３０は、純グラフェンでもいいし、合金グラフェンでもよく、合金グラフェンは、例えば銀グラフェン（銀炭素合金）でもいいし、銅グラフェン（銅炭素合金）でもよく、グラフェン連接ブロック３０が第一電池セル２０の負極電極２２に電気的に連接される。 The graphene connecting block 30 may be pure graphene, may be alloy graphene, and the alloy graphene may be, for example, silver graphene (silver carbon alloy) or copper graphene (copper carbon alloy). The battery cell 20 is electrically connected to the negative electrode 22.
前記第二電池セル４０は、その外部には、ニッケルを含有する金属で作製された、正極電極４１と、負極電極４２と、が設けられ、正極電極４１と負極電極４２が第二電池セル４０の電力出力端とされ、第二電池セル４０の正極電極４１がグラフェン連接ブロック３０に電気的に連接され、バネ５０と押付板５１とに付勢されているグラフェン連接ブロック３０は、第一電池セル２０と第二電池セル４０とに緊密に接触し、これにより、第一電池セル２０と第二電池セル４０が直列接続するようになる。 The second battery cell 40 is provided with a positive electrode 41 and a negative electrode 42 made of a metal containing nickel on the outside, and the positive electrode 41 and the negative electrode 42 are the second battery cell 40. The graphene connection block 30, which is electrically connected to the graphene connection block 30 and is biased by the spring 50 and the pressing plate 51, is connected to the first battery. The cell 20 and the second battery cell 40 are in close contact with each other, whereby the first battery cell 20 and the second battery cell 40 are connected in series.
また、第一電池セル２０の負極電極２２と、第二電池セル４０の正極電極４１とには、第一電池セル２０の電力最終出力端とするグラフェン端子４０１と、第二電池セル４０の電力最終出力端とするグラフェン端子４０２と、をそれぞれ設けてもよく、グラフェン端子４０１、４０２には、成形プロセスにおいて、電力出力リードとするリード４０３、４０４がそれぞれ作り込まれる。 Further, the negative electrode 22 of the first battery cell 20 and the positive electrode 41 of the second battery cell 40 include a graphene terminal 401 serving as a power final output terminal of the first battery cell 20 and the power of the second battery cell 40. A graphene terminal 402 serving as a final output end may be provided, and leads 403 and 404 serving as power output leads are respectively formed in the graphene terminals 401 and 402 in the molding process.
また、図４に示すように、二つの電池セルを並列接続する場合には、第三電池セルと第四電池セルの間には、少なくとも一つの第一グラフェン連接ブロックと、少なくとも一つの第二グラフェン連接ブロックとを設けると、第三電池セルと第四電池セルが高導電効率に並列接続するようになる。 Further, as shown in FIG. 4, when two battery cells are connected in parallel, at least one first graphene connecting block and at least one second battery cell are interposed between the third battery cell and the fourth battery cell. When the graphene connecting block is provided, the third battery cell and the fourth battery cell are connected in parallel with high conductivity efficiency.
前記第三電池セル６０は、円筒形状を呈し、その外部の両端には、ニッケルを含有する金属で作製された、正極電極６１と、負極電極６２と、がそれぞれ設けられ、正極電極６１と負極電極６２が第三電池セル６０の電力出力端とされる。 The third battery cell 60 has a cylindrical shape, and is provided with a positive electrode 61 and a negative electrode 62 made of a metal containing nickel at both ends of the third battery cell 60, respectively. The electrode 62 is the power output terminal of the third battery cell 60.
前記第一グラフェン連接ブロック７０は、第三電池セル６０の正極電極６１に電気的に連接される。 The first graphene connection block 70 is electrically connected to the positive electrode 61 of the third battery cell 60.
前記第四電池セル８０は、円筒形状を呈し、その外部の両端には、ニッケルを含有する金属で作製された、正極電極８１と、負極電極８２と、がそれぞれ設けられ、正極電極８１と負極電極８２が第四電池セル８０の電力出力端とされ、第四電池セル８０の正極電極８１が第一グラフェン連接ブロック７０に電気的に連接される。 The fourth battery cell 80 has a cylindrical shape, and a positive electrode 81 and a negative electrode 82 made of a metal containing nickel are provided at both ends of the fourth battery cell 80, respectively. The positive electrode 81 and the negative electrode The electrode 82 is the power output terminal of the fourth battery cell 80, and the positive electrode 81 of the fourth battery cell 80 is electrically connected to the first graphene connection block 70.
前記第二グラフェン連接ブロック９０は、第三電池セル６０の負極電極６２と、前記第四電池セル８０の負極電極８２とに電気的に連接され、バネ５０ａ及び押付板５１ａにより、第一グラフェン連接ブロック７０が押付けられて第三電池セル６０と電気的に連接し、なお、バネ５０ｂ及び押付板５１ｂにより、第二グラフェン連接ブロック９０が押付けられて第四電池セル８０と電気的に連接し、そうすると、第三電池セル６０と第四電池セル８０が並列接続するようになる。 The second graphene connection block 90 is electrically connected to the negative electrode 62 of the third battery cell 60 and the negative electrode 82 of the fourth battery cell 80, and is connected to the first graphene connection by the spring 50a and the pressing plate 51a. The block 70 is pressed and electrically connected to the third battery cell 60, and the second graphene connecting block 90 is pressed and electrically connected to the fourth battery cell 80 by the spring 50b and the pressing plate 51b. Then, the third battery cell 60 and the fourth battery cell 80 are connected in parallel.
また、第一グラフェン連接ブロック７０には、成形プロセスにおいて、第三電池セル６０の電力出力リードとするリード４０５が作り込まれ、且つ第二グラフェン連接ブロック９０には、成形プロセスにおいて、第四電池セル８０の電力出力リードとするリード４０６が作り込まれる。 The first graphene connecting block 70 is formed with a lead 405 serving as a power output lead of the third battery cell 60 in the molding process, and the second graphene connecting block 90 has a fourth battery in the molding process. A lead 406 is formed as the power output lead of the cell 80.
本発明に係る高導電効率接続構造によれば、グラフェン連接ブロックが電池セルと直接に接触し連接するので、溶接工程を省略することができ、そしてグラフェン連接ブロックと電池セルの間にはインピーダンスが小さいので、導電効率が極めて高い。 According to the high conductive efficiency connection structure according to the present invention, since the graphene connection block is in direct contact with and connected to the battery cell, the welding process can be omitted, and there is an impedance between the graphene connection block and the battery cell. Since it is small, the conductive efficiency is extremely high.
特に、第一、二電池セル２０、４０の外部にある正、負極電極４１、２２がニッケルを含有する金属で作製されたので、図５Ａに示すように、正、負極電極４１、２２の表面には不純物５００又は酸化物が付着し、不純物５００又は酸化物により第一、二電池セル２０、４０の放電時のインピーダンスが増加し、放電効率が悪化し、また、図３及び図５-２に示すのは本発明に係る高導電効率接続構造であり、このような高導電効率接続構造によれば、グラフェン連接ブロック３０が第一、二電池セル２０、４０の外部にある正、負極電極４１、２２と電気的に連接し、グラフェン連接ブロック３０が酸化し難く、且つグラフェン連接ブロック３０がニッケルを含有する金属で作製された、電池正極電極４１と、電池負極電極２２とに接触すると、両方には溶解現象が発生され、すなわち、グラフェン連接ブロック３０の炭素微粒６００が電池正極電極４１及び電池負極電極２２の表面にある不純物５００又は酸化物を取り替えることにより、グラフェン連接ブロック３０の炭素微粒６００が電池正極電極４１及び電池負極電極２２の表面の窪みに位置し、炭素とニッケルが溶解して合金状態になり、そうすると、グラフェン連接ブロック３０と第一、二電池セル２０、４０の間の導電効率が増加し、ハイインピーダンスによる大電流の放電ができない問題が解決される。 In particular, since the positive and negative electrodes 41 and 22 outside the first and second battery cells 20 and 40 are made of a metal containing nickel, as shown in FIG. 5A, the surfaces of the positive and negative electrodes 41 and 22 Impurities 500 or oxides adhere to the electrodes, and the impurities 500 or oxides increase the impedance at the time of discharge of the first and second battery cells 20 and 40, and the discharge efficiency deteriorates. Also, FIG. 3 and FIG. 1 shows a high-conductivity connection structure according to the present invention, and according to such a high-conductivity connection structure, the graphene connecting block 30 is located on the outside of the first and second battery cells 20, 40. 41 and 22 are electrically connected, the graphene connecting block 30 is not easily oxidized, and the graphene connecting block 30 is in contact with the battery positive electrode 41 and the battery negative electrode 22 made of a metal containing nickel. In both cases, a dissolution phenomenon occurs, that is, the carbon particles 600 of the graphene connection block 30 replace the impurities 500 or oxides on the surfaces of the battery positive electrode 41 and the battery negative electrode 22, thereby forming the graphene connection block 30. The carbon fine particles 600 are located in the depressions on the surfaces of the battery positive electrode 41 and the battery negative electrode 22, and the carbon and nickel are dissolved to be in an alloy state. Then, the graphene connecting block 30 and the first and second battery cells 20, 40 In this way, the problem of inability to discharge a large current due to high impedance is solved.
本発明に係る高導電効率接続構造によれば、図６に示すように、本発明に係る複数のグラフェン連接ブロック３０２により、複数の電池セル３０１を直列接続し、並列接続し、又は直列接続及び並列接続を混合に施すことにより、高容量な電池ユニット３００を構成する場合には、グラフェン連接ブロック３０がニッケルを含有する金属で作製された電池電極に接触すると、両方には溶解現象が発生され、これにより、各電池セル３０１の間の導電効率が増加し、本発明に係る高導電効率接続構造は、従来の連接片と電池電極がスポット溶接によって電気的に連接する方法に比べると、電池セルと外部の電気的な連接によるインピーダンスが減少し、電池セル３０１とグラフェン連接ブロック３０２の間の電気抵抗が減少するので、電池セルの充放電による電力ロスが減少し、ひいては電池ユニットは効率良く大電流を出力することができる。 According to the high conductive efficiency connection structure according to the present invention, as shown in FIG. 6, a plurality of battery cells 301 are connected in series, connected in parallel, or connected in series by a plurality of graphene connection blocks 302 according to the present invention. When a high capacity battery unit 300 is configured by performing parallel connection to the mixture, when the graphene connection block 30 contacts a battery electrode made of a metal containing nickel, a melting phenomenon occurs in both. As a result, the conductive efficiency between the battery cells 301 is increased, and the high conductive efficiency connection structure according to the present invention has a battery that is electrically connected to the conventional connecting piece and the battery electrode electrically connected by spot welding. Since the impedance due to the electrical connection between the cell and the outside is reduced, and the electrical resistance between the battery cell 301 and the graphene connection block 302 is reduced, the battery cell Power loss due to charging and discharging is decreased, and thus the battery unit can output efficiently large current.
本発明は、電池に適用することができる。 The present invention can be applied to a battery.
１０ 連接片
１１ 電池セル
１２ 金属電極
１３ 溶接点
２０ 第一電池セル
２１ 正極電極
２２ 負極電極
３０ グラフェン連接ブロック
４０ 第二電池セル
４１ 正極電極
４２ 負極電極
５０ バネ
５０ａ バネ
５０ｂ バネ
５１ 押付板
５１ａ 押付板
５１ｂ 押付板
６０ 第三電池セル
６１ 正極電極
６２ 負極電極
７０ 第一グラフェン連接ブロック
８０ 第四電池セル
８１ 正極電極
８２ 負極電極
９０ 第二グラフェン連接ブロック
２００ 酸化物
３００ 電池セルユニット
３０１ 電池セル
３０２ グラフェン連接ブロック
４０１ グラフェン端子
４０２ グラフェン端子
４０３ リード
４０４ リード
４０５ リード
４０６ リード
５００ 不純物
６００ 炭素微粒
DESCRIPTION OF SYMBOLS 10 Connection piece 11 Battery cell 12 Metal electrode 13 Welding point 20 First battery cell 21 Positive electrode 22 Negative electrode 30 Graphene connection block 40 Second battery cell 41 Positive electrode 42 Negative electrode 50 Spring 50a Spring 50b Spring 51 Pressing plate 51a Pressing plate 51b Pressing plate 60 Third battery cell 61 Positive electrode 62 Negative electrode 70 First graphene connection block 80 Fourth battery cell 81 Positive electrode 82 Negative electrode 90 Second graphene connection block 200 Oxide 300 Battery cell unit 301 Battery cell 302 Graphene connection Block 401 Graphene terminal 402 Graphene terminal 403 Lead 404 Lead 405 Lead 406 Lead 500 Impurity 600 Carbon fine particles
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| KR102157377B1 (en) * | 2017-05-25 | 2020-09-17 | 주식회사 엘지화학 | Battery module and battery pack including the same and manufacturing method for battery module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH04137460A (en) * | 1990-09-28 | 1992-05-12 | Seiko Electronic Components Ltd | Can for lithium cell |
| JP3882267B2 (en) * | 1997-05-29 | 2007-02-14 | 新神戸電機株式会社 | Battery power supply |
| JPH1186832A (en) * | 1997-09-04 | 1999-03-30 | Harness Sogo Gijutsu Kenkyusho:Kk | Connecting structure of battery |
| JP4242953B2 (en) * | 1998-09-21 | 2009-03-25 | 三洋電機株式会社 | Manufacturing method of battery pack |
| JP2001283797A (en) * | 2000-03-29 | 2001-10-12 | Kyocera Corp | Lithium battery |
| JP2001279490A (en) * | 2000-03-30 | 2001-10-10 | Nisshin Steel Co Ltd | ONE SIDE Ni PLATED STEEL SHEET HAVING HIGH LUSTER AND REDUCED CONTACT RESISTANCE FOR NEGATIVE AND POSITIVE POLE CANS OF LITHIUM BUTTON CELL |
| JP2004185985A (en) * | 2002-12-03 | 2004-07-02 | Toyota Motor Corp | Electric conduction wire |
| JP2005100926A (en) * | 2003-05-14 | 2005-04-14 | Nec Tokin Corp | Electrochemical cell laminate |
| JP4794138B2 (en) * | 2004-04-27 | 2011-10-19 | 三洋電機株式会社 | Assembled battery |
| JP2007122927A (en) * | 2005-10-25 | 2007-05-17 | Bussan Nanotech Research Institute Inc | Conductive sheet |
| JP5005220B2 (en) * | 2006-01-10 | 2012-08-22 | 三桜工業株式会社 | Method for welding connection plate in battery pack |
| JP4586008B2 (en) * | 2006-11-10 | 2010-11-24 | 日立ビークルエナジー株式会社 | Battery pack and manufacturing method thereof |
| US8202817B2 (en) * | 2007-01-31 | 2012-06-19 | Nec Corporation | Nanocarbon aggregate and method for manufacturing the same |
| WO2009015287A2 (en) * | 2007-07-25 | 2009-01-29 | California Institute Of Technology | Functional anchors connecting graphene-like carbon to metal |
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