JP2002134086A - Activated carbon composite separator for battery - Google Patents
Activated carbon composite separator for batteryInfo
- Publication number
- JP2002134086A JP2002134086A JP2000369244A JP2000369244A JP2002134086A JP 2002134086 A JP2002134086 A JP 2002134086A JP 2000369244 A JP2000369244 A JP 2000369244A JP 2000369244 A JP2000369244 A JP 2000369244A JP 2002134086 A JP2002134086 A JP 2002134086A
- Authority
- JP
- Japan
- Prior art keywords
- activated carbon
- battery
- separator
- pbb
- internal resistance
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Cell Separators (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、二次電池を構成す
るセパレータに関する改良である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement relating to a separator constituting a secondary battery.
【０００２】[0002]
【従来の技術】電池のセパレータ（以下、セパレータ）
は、紙類、ガラスマット、或いは微孔を有する合成樹脂
の膜と不織布等、或いは微孔を有するセラミック等の材
質からなっていて、正極材と負極材間隔の正確性、電解
液拡散性、ガス透過性、イオン伝導性、等、電気化学上
求められる条件（以下、セパレータ機能）を多く満たし
ている。2. Description of the Related Art Battery separators (hereinafter, separators)
Is made of a material such as paper, glass mat, or a synthetic resin film having micropores and a nonwoven fabric, or a ceramic having micropores. It satisfies many conditions (hereinafter referred to as separator function) required in electrochemical applications such as gas permeability and ion conductivity.
【０００３】[0003]
【発明が解決しようとする課題】二次電池の急速充電は
不可欠の条件になりつつあり、鉛系二次電池（以下、Ｐ
ｂＢ）の急速充電は、既存諸装置の至便性上早急に確立
すべき技術である。又、エネルギー密度が大きいリチウ
ム系二次電池（以下、ＬｉＢ）も同様である。然し乍
ら、急速充電時にともなう電池内部抵抗増幅を起因にし
て生成するＰｂＢの酸化鉛膜状析出物（以下、サルフェ
ーション）及びＬｉＢのリチウム樹枝状析出物（以下、
デントライト）の発生が、それら電池の急速充電を阻ん
でいる。The rapid charging of secondary batteries is becoming an indispensable condition, and lead-based secondary batteries (hereinafter referred to as P
The rapid charging of bB) is a technology that should be established promptly for convenience of existing devices. The same applies to a lithium secondary battery (hereinafter, LiB) having a large energy density. However, a lead oxide film-like precipitate of PbB (hereinafter referred to as sulfation) and a lithium dendritic precipitate of LiB (hereinafter referred to as “sulfation”) generated due to an increase in internal resistance of the battery during rapid charging.
Dent light) prevents rapid charging of these batteries.
【０００４】本発明は、セパレータの材質或いは活物質
組成にかかわらず、サルフェーション及びデントライト
の発生を抑える機能を有するセパレータを目的とする。[0004] It is an object of the present invention to provide a separator having a function of suppressing the generation of sulfation and dentite regardless of the material or active material composition of the separator.
【０００５】[0005]
【課題を解決するための手段】活性炭は、サルフェーシ
ョン及びデントライトを抑える作用があることが知られ
ている。例えば特開平９−２４５７７２があるが、該方
法はセパレータとは異なるポジションでの活性炭による
電池改良技術である。本発明は、粒状活性炭或いは繊維
状活性炭を二次電池のセパレータに接着剤で固着する構
造で電池内に介在せしめ、サルフェーション及びデント
ライトを抑える手段とした。Activated carbon is known to have an effect of suppressing sulfation and dentite. For example, Japanese Unexamined Patent Application Publication No. 9-245772 discloses a battery improvement technique using activated carbon at a position different from that of the separator. The present invention has a structure in which granular activated carbon or fibrous activated carbon is fixed to a separator of a secondary battery with an adhesive, and is interposed in the battery to suppress sulfation and dentite.
【０００６】[0006]
【発明の実施の形態】セパレータに接着剤を正確に塗布
するには、凸版印刷、凹版印刷、孔版印刷、等の方法が
好ましい。実証では、高粘度印刷インク等が一定形状で
通過できるスクリーン（以下、スクリーン）と、上記イ
ンクをスクリーン上に拡散圧着するローラー状用具（以
下、ローラ）からなる孔版印刷方法を用いた。セパレー
タ上に、セパレータ機能を侵さない最小限の間隔（以
下、適宜な間隔）で孔状の目開き（以下、目開き）が設
けてあるスクリーンを設置し、次に、スクリーン上に接
着剤をローラーで拡散圧着すると、スクリーンの目開き
を通過した接着剤が適宜な間隔でセパレータに塗布され
る。次に、接着剤を塗布した状態のセパレータ上に粒状
活性炭を散布すると、接着剤塗布形状と同形状に適宜な
間隔を保って粒状活性炭とセパレータが固着する。DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to accurately apply an adhesive to a separator, a method such as letterpress printing, intaglio printing, stencil printing, or the like is preferable. In the demonstration, a stencil printing method including a screen (hereinafter, referred to as a screen) through which a high-viscosity printing ink or the like can pass in a fixed shape and a roller-shaped tool (hereinafter, referred to as a roller) for diffusing and pressing the ink onto the screen was used. On the separator, a screen having pore-shaped openings (hereinafter referred to as openings) is installed at a minimum interval that does not impair the separator function (hereinafter referred to as an appropriate interval), and then an adhesive is applied on the screen. When diffusion pressure bonding is performed with a roller, the adhesive that has passed through the openings of the screen is applied to the separator at appropriate intervals. Next, when the granular activated carbon is sprayed on the separator coated with the adhesive, the granular activated carbon and the separator are fixed at the same shape as the adhesive applied shape at an appropriate interval.
【０００７】繊維状活性炭をセパレータに固着するに
は、[0007] To fix the fibrous activated carbon to the separator,
【０００６】項で記した工程で良い。異なるところは、
繊維状活性炭は散布する形状ではないので、セパレータ
上に接着している接着剤に繊維状活性炭の適宜な片を載
置する方法になる。以上の工程で繊維状活性炭は、適宜
な間隔を保ってセパレータと固着する。The steps described in the above section may be used. The difference is
Since the fibrous activated carbon is not in a form to be sprinkled, a method of placing an appropriate piece of the fibrous activated carbon on the adhesive bonded on the separator is adopted. In the above steps, the fibrous activated carbon is fixed to the separator at an appropriate interval.
【０００８】尚、[0008]
【０００６】項で記した工程をセパレータの両面に施し
て粒状活性炭或いは繊維状活性炭を固着すると、それら
活性炭の固着量が倍増し電池内部抵抗の増幅をより強く
抑える効果をもつた活性炭と複合一体化したセパレータ
（以下、本件セパレータ）が構成される。When the steps described in the paragraph are performed on both surfaces of the separator to fix the granular activated carbon or the fibrous activated carbon, the amount of the activated carbon to be fixed is doubled, and the activated carbon is combined with the activated carbon having an effect of more strongly suppressing the amplification of the battery internal resistance. The separator (hereinafter, the present separator) is constituted.
【０００９】[0009]
【実施例】実施例について図面を参照して説明すると、
図１に於いて、Embodiments will be described with reference to the drawings.
In FIG.
【０００６】項の工程を経た接着剤４がセパレータ３上
に塗布されている状態で粒状活性炭１をセパレータ３に
散布すると、粒状活性炭１はセパレータ３上に固着し本
件セパレータ３を構成する。When the granular activated carbon 1 is sprayed on the separator 3 in a state where the adhesive 4 having undergone the above-mentioned process is applied on the separator 3, the granular activated carbon 1 adheres to the separator 3 to constitute the separator 3 of the present invention.
【００１０】図２に於いて、In FIG. 2,
【０００６】項の工程を経た接着剤４がセパレータ３上
に塗布されている状態で繊維状活性炭２をセパレータ３
に載置すると、繊維状活性炭２はセパレータ３上に固着
し本件セパレータ３を構成する。The fibrous activated carbon 2 is applied to the separator 3 while the adhesive 4 having been subjected to the above-mentioned process is applied on the separator 3.
, The fibrous activated carbon 2 adheres to the separator 3 to form the separator 3 of the present invention.
【００１１】図３に於いて、負極端子７を連結して鉛負
極活物質からなる負極４と、正極端子８を連結して酸化
鉛正極活物質からなる正極５と、それら負極４と正極５
を一定間隔に保っていて両面に粒状活性炭を固着した複
数の本件セパレータ３が、電池槽６に内設してある状態
でＰｂＢが構成されている。In FIG. 3, a negative electrode 4 made of a lead negative electrode active material is connected to a negative electrode terminal 7, a positive electrode 5 made of a lead oxide positive active material is connected to a positive electrode terminal 8, and the negative electrode 4 and the positive electrode 5 are connected.
PbB is formed in a state in which a plurality of the present separators 3 having granular activated carbon fixed on both surfaces thereof are provided in the battery tank 6 while maintaining a constant interval.
【００１２】図１の、粒状活性炭１、接着剤４、セパレ
ータ３は、本件セパレータ３の構造を説明する概略拡大
図で、実際の構造はそれら各部材が緻密に連鎖してい
る。図２の、繊維状活性炭２、接着剤４、セパレータ３
は、本件セパレータ３の構造を説明する概略拡大図で、
実際の構造はそれら各部材は緻密に連鎖している。図３
の電池構造は、本件セパレータの形態を説明する化学電
池の基本的構成を示したもので、本件セパレータを用い
た電池の形状を限定するものではない。The granular activated carbon 1, adhesive 4, and separator 3 in FIG. 1 are schematic enlarged views for explaining the structure of the present separator 3. In the actual structure, these members are closely linked. 2, fibrous activated carbon 2, adhesive 4, separator 3
Is a schematic enlarged view for explaining the structure of the present separator 3,
In an actual structure, these members are closely linked. FIG.
The battery structure described above shows the basic structure of a chemical battery for explaining the form of the present separator, and does not limit the shape of a battery using the present separator.
【００１３】[0013]
【発明の効果】上記の様に構成された本件セパレータ３
のサルフェーションを抑える働きを確認するために、規
格表示６Ｎ２−２Ａの３セル構造既存ＰｂＢの１セル
に、本件セパレータ３を用いて実証ＰｂＢ（以下、実証
ＰｂＢ）とし、比較のための１セルは既存ＰｂＢ現状品
を用いた。又、双方セルには電解液、充電及び放電、短
絡等、全て同条件を施し（Ａ）（Ｂ）（Ｃ）の運転とか
かる測定をした。 （Ａ）２．５Ｖ定電圧で６０分充電後、充電後電池内部
抵抗を測定。 （Ｂ）１Ａ定電流で終止電圧を１．７Ｖとして放電後、
終止電圧１．７Ｖ時点の電池内部抗と終止電圧１．７Ｖ
迄の放電持続時間を測定。 （Ｃ）終止電圧１．７Ｖ迄放電後、負極端子７と正極端
子８を６０分短絡。 以上の実証作業を１２回反復した運転各数値を以下に記
した。According to the present invention, the separator 3 constructed as described above is provided.
In order to confirm the function of suppressing the sulfation of the present invention, one cell of the existing PbB having a three-cell structure of the standard designation 6N2-2A was used as a demonstration PbB (hereinafter, demonstration PbB) using the present separator 3, and one cell for comparison was The existing PbB current product was used. The same conditions were applied to both cells, such as electrolyte, charge and discharge, short circuit, etc., and the operations (A), (B) and (C) and the measurements were performed. (A) After charging at a constant voltage of 2.5 V for 60 minutes, the internal resistance of the battery after charging was measured. (B) After discharging with a final voltage of 1.7 V at a constant current of 1 A,
The internal resistance of the battery at the end voltage of 1.7 V and the end voltage of 1.7 V
Measure the duration of discharge up to. (C) After discharging to a final voltage of 1.7 V, the negative electrode terminal 7 and the positive electrode terminal 8 were short-circuited for 60 minutes. The operation values obtained by repeating the above verification work 12 times are shown below.
【００１４】 第１回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ３８．８ｍΩ ３３．３ｍΩ （Ｂ）の電池内部抵抗値 ６５．１ｍΩ ５９．８ｍΩ （Ｂ）の放電持続時間値 １７．２６秒 ２１．４３秒 第２回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ４０．２ｍΩ ４１．７ｍΩ （Ｂ）の電池内部抵抗値 ５９．４ｍΩ ７２．８ｍΩ （Ｂ）の放電持続時間値 ９．１５秒 ６．１２秒 第３回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ３９．３ｍΩ ３７．７ｍΩ （Ｂ）の電池内部抵抗値 ６１．２ｍΩ ６９．３ｍΩ （Ｂ）の放電持続時間値 １３．５４秒 １０．５０秒 第４回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ４０．１ｍΩ ６７．２ｍΩ （Ｂ）の電池内部抵抗値 ５８．６ｍΩ １０７．８ｍΩ （Ｂ）の放電持続時間値 １３．５３秒 ２．０３秒 第５回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ３５．２ｍΩ ７８．１ｍΩ （Ｂ）の電池内部抵抗値 ５２．８ｍΩ １１２．９ｍΩ （Ｂ）の放電持続時間値 １２．０９秒 １．３２秒 第６回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ３３．８ｍΩ ８７．３ｍΩ （Ｂ）の電池内部抵抗値 ４９．９ｍΩ １２１．４ｍΩ （Ｂ）の放電持続時間値 １１．１１秒 １．１６秒 第７回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ３２．８ｍΩ １７６．１ｍΩ （Ｂ）の電池内部抵抗値 ６７．６ｍΩ １８９．３ｍΩ （Ｂ）の放電持続時間値 １２．１６秒 ０．１６秒 第８回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ３３．３ｍΩ ２４０．ｍΩ （Ｂ）の電池内部抵抗値 ６９．２ｍΩ ２７０．ｍΩ （Ｂ）の放電持続時間値 １２．５６秒 ０．１秒 第９回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ３３．１ｍΩ ２９７．ｍΩ （Ｂ）の電池内部抵抗値 ７２．８ｍΩ ３２２．ｍΩ （Ｂ）の放電持続時間値 １１．１３秒 ０．１秒 第１０回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ３４．２ｍΩ ２９５．ｍΩ （Ｂ）の電池内部抵抗値 ６５．１ｍΩ ２１１．ｍΩ （Ｂ）の放電持続時間値 １７．２６秒 ０．１秒 第１１回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ３４．８ｍΩ １２４．ｍΩ （Ｂ）の電池内部抵抗値 ８０．５ｍΩ １３２．ｍΩ （Ｂ）の放電持続時間値 １５．５７秒 ０．６秒 第１２回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ３３．６ｍΩ １２９．９ｍΩ （Ｂ）の電池内部抵抗値 ８１．７ｍΩ １５６．６ｍΩ （Ｂ）の放電持続時間値 １８．１７秒 ０．１秒First Operation Demonstration PbB Battery internal resistance value of existing PbB (A) 38.8 mΩ 33.3 mΩ Battery internal resistance value of (B) 65.1 mΩ 59.8 mΩ (B) Discharge duration value 17.26 Second 21.43 seconds Second operation demonstration PbB Battery internal resistance of existing PbB (A) 40.2 mΩ 41.7 mΩ Battery internal resistance of (B) 59.4 mΩ 72.8 mΩ (B) Discharge duration 9 .15 seconds 6.12 seconds Third operation demonstration PbB Battery internal resistance of existing PbB (A) 39.3 mΩ 37.7 mΩ Battery internal resistance of (B) 61.2 mΩ 69.3 mΩ (B) Discharge duration Value 13.54 seconds 10.50 seconds 4th operation Demonstration PbB Battery internal resistance value of existing PbB (A) 40.1 mΩ 67.2 mΩ Battery internal resistance value of (B) 58.6 mΩ 107.8 mΩ (B) Duration value 13.53 seconds 2.03 seconds Fifth operation Demonstration PbB Internal battery resistance value of existing PbB (A) 35.2 mΩ 78.1 mΩ (B) Battery internal resistance value 52.8 mΩ 112.9 mΩ (B) Discharge duration value of 12.09 seconds 1.32 seconds 6th operation demonstration PbB Existing battery resistance value of existing PbB (A) 33.8 mΩ 87.3 mΩ Battery internal resistance value of (B) 49.9 mΩ 121.4 mΩ ( B) Discharge duration value 11.11 seconds 1.16 seconds 7th operation Demonstration PbB Existing PbB (A) internal battery resistance value 32.8 mΩ 176.1 mΩ (B) internal battery resistance value 67.6 mΩ 189. Discharge duration value of 3 mΩ (B) 12.16 seconds 0.16 seconds 8th operation verification PbB Battery internal resistance value of existing PbB (A) 33.3 mΩ 240. Battery internal resistance value of mΩ (B) 69.2 mΩ 270. Discharge duration value of mΩ (B) 12.56 seconds 0.1 seconds Ninth operation Demonstration PbB Internal battery resistance value of existing PbB (A) 33.1 mΩ 297. mΩ (B) Battery internal resistance value 72.8 mΩ 322. Discharge duration value of mΩ (B) 11.13 seconds 0.1 second 10th operation demonstration PbB Internal resistance value of existing PbB (A) battery 34.2 mΩ 295. Battery internal resistance value of mΩ (B) 65.1 mΩ 211. Discharge duration value of mΩ (B) 17.26 seconds 0.1 seconds 11th operation demonstration PbB Battery internal resistance value of existing PbB (A) 34.8 mΩ 124. Battery internal resistance value of mΩ (B) 80.5 mΩ 132. Discharge duration value of mΩ (B) 15.57 seconds 0.6 seconds 12th operation verification PbB Battery internal resistance value of existing PbB (A) 33.6 mΩ 129.9 mΩ Battery internal resistance value of (B) 81.7 mΩ Discharge duration value of 156.6 mΩ (B) 18.17 seconds 0.1 seconds
【００１５】[0015]
【発明の効果】上記、１２回反復の運転数値と観察か
ら、実証ＰｂＢは第１２回運転に於いても正常な電池機
能を保っているが、一方の既存ＰｂＢは、第４回運転後
の（Ａ）電池内部抵抗値と（Ｂ）放電持続時間値が電池
機能停止状態を示している。又、第１２回運転後の観察
では、既存ＰｂＢの負極と正極はサルフェーション皮膜
で覆われていたが、実証ＰｂＢの負極４及び正極５は何
らの異常もなかった。From the above operation values and observations of the 12th repetition, the demonstration PbB maintains the normal battery function even in the twelfth operation, while the existing PbB has the same function after the fourth operation. (A) The battery internal resistance value and (B) the discharge duration time value indicate the battery function stop state. Further, according to the observation after the twelfth operation, the negative electrode and the positive electrode of the existing PbB were covered with the sulfation film, but the negative electrode 4 and the positive electrode 5 of the demonstration PbB did not have any abnormality.
【００１６】以上の効果から、本件セパレータ３は、急
速充電にともなうサルフェーションの起因である電池内
部抵抗の増幅を防ぎＰｂＢの急速充電を可能にした。From the above effects, the separator 3 of the present invention prevented the amplification of the internal resistance of the battery, which is the cause of sulfation caused by the rapid charging, and enabled the rapid charging of PbB.
【００１７】又、本件セパレータ３は、ＬｉＢに於いて
も上記同様の効果により急速充電にともなうデントライ
トの起因である電池内部抵抗の増幅を防ぎ、それら電池
の急速充電に於いても有効に作用する。The separator 3 according to the present invention also prevents the amplification of the internal resistance of the battery, which is caused by the dentite, due to the rapid charging of LiB by the same effect as described above, and effectively acts also in the rapid charging of these batteries. I do.
【図１】本件セパレータの、粒状活性炭に於ける実施例
を示す縦断概略図FIG. 1 is a schematic longitudinal sectional view showing an embodiment of a granular activated carbon of the present separator.
【図２】本件セパレータの、繊維状活性炭に於ける実施
例を示す縦断概略図FIG. 2 is a schematic longitudinal sectional view showing an embodiment of the present separator in a fibrous activated carbon.
【図３】本件セパレータを用いた、鉛二次電池の実施例
を示す縦断概略図FIG. 3 is a schematic longitudinal sectional view showing an embodiment of a lead secondary battery using the present separator.
１ 粒状活性炭 ２ 繊維状活性炭 ３ セパレータ ４ 負極（鉛） ５ 正極（酸化鉛） ６ 電池槽 ７ 負極端子 ８ 正極端子 REFERENCE SIGNS LIST 1 granular activated carbon 2 fibrous activated carbon 3 separator 4 negative electrode (lead) 5 positive electrode (lead oxide) 6 battery tank 7 negative electrode terminal 8 positive electrode terminal
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【手続補正書】[Procedure amendment]
【提出日】平成１３年３月１日（２００１．３．１）[Submission date] March 1, 2001 (2001.3.1)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Correction target item name] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【書類名】 明細書[Document Name] Statement
【発明の名称】電池の活性炭複合状セパレータActivated carbon composite separator for batteries
【特許請求の範囲】[Claims]
【０００１】[0001]
【発明の属する技術分野】本発明は、セパレータを利用
した活性炭の電池応用技術に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for applying activated carbon to a battery using a separator.
【０００２】[0002]
【従来の技術】電池のセパレータ（以下、セパレータ）
とは、絶縁体からなる、紙類、ガラスマット、或いは微
孔を有する合成樹脂の膜と不織布等、或いは微孔を有す
るセラミック等の材質からなっていて、正極材と負極材
間隔の正確性を満たす物理的条件と電解液拡散性、ガス
透過性、イオン伝導性、等、電気化学上求められる条件
を満たしている（以下、セパレータ機能）電池部材であ
る。2. Description of the Related Art Battery separators (hereinafter, separators)
Is a material such as paper, glass mat, or synthetic resin film and nonwoven fabric with micropores, or ceramics with micropores, made of an insulator. The battery member satisfies the physical conditions that satisfy the conditions and the electrochemically required conditions such as electrolyte solution diffusivity, gas permeability, and ion conductivity (hereinafter, referred to as a separator function).
【０００３】又、電池に於いて、粉状、破砕状、球状か
らなる粒状活性炭（以下、粒状活性炭）或いは繊維状活
性炭は、サルフェーション及びデントライトを抑える作
用があることが知られている、例えば特開平９−２４５
７７２がある他、集電体としても広く使われている。[0003] In a battery, granular, crushed, or spherical granular activated carbon (hereinafter, granular activated carbon) or fibrous activated carbon is known to have an effect of suppressing sulfation and dentite. JP-A-9-245
In addition to 772, it is widely used as a current collector.
【０００４】[0004]
【発明が解決しようとする課題】電池の急速充放電は不
可欠条件になりつつある、とりわけ鉛系二次電池（以
下、ＰｂＢ）及びリチウム系二次電池（以下、ＬｉＢ）
の急速充放電は既存諸装置の至便性上早急に確立すべき
技術であり、他の種の電池も同様な状況にある。然し乍
ら、急速充放電に係る未充電状態或いは過放電状態にと
もなう電池内部抵抗増幅を起因にして生成するＰｂＢの
酸化鉛膜状析出物（以下、サルフェーション）及びＬｉ
Ｂのリチウム樹枝状析出物（以下、デントライト）の発
生が、それら電池の急速充放電使用を阻んでおり解決す
べき問題である。The rapid charging and discharging of batteries is becoming an indispensable condition. In particular, lead-based secondary batteries (hereinafter, PbB) and lithium-based secondary batteries (hereinafter, LiB)
Is a technology that should be quickly established for the convenience of existing devices, and other types of batteries are in the same situation. However, PbB lead oxide film-like precipitates (hereinafter referred to as "sulfation") and Li, which are generated due to an increase in the internal resistance of the battery due to an uncharged state or an overdischarged state related to rapid charge and discharge, and Li.
The generation of lithium dendritic precipitates of B (hereinafter referred to as dendrites) is a problem to be solved because they hinder the rapid charge / discharge use of these batteries.
【０００５】[0005]
【課題を解決するための手段】本発明は、電池内に活性
炭を介在せしめた構造によって前記問題を解決するもの
であるが、振動等の原因によって電池内に活性炭が拡散
すると、活性炭が伝導体になって負極と正極を短絡し電
池を破損する原因になる。そこで本発明では、The present invention solves the above problem by a structure in which activated carbon is interposed in a battery. However, when activated carbon diffuses into a battery due to vibration or the like, the activated carbon becomes a conductor. As a result, the negative electrode and the positive electrode are short-circuited and the battery is damaged. Therefore, in the present invention,
【０００６】請求項１に於いて、セパレータに活性炭を
接着或いは溶着の方法で固着する（以下、活性炭複合セ
パレータ）形態により、電池内に介在せしめた活性炭の
拡散を防ぐ方法とした。According to the first aspect of the present invention, the activated carbon is fixed to the separator by bonding or welding (hereinafter referred to as activated carbon composite separator) to prevent diffusion of the activated carbon interposed in the battery.
【０００７】請求項２に於いて、セパレータが活性炭を
包み覆う（以下、活性炭内蔵セパレータ）形態により、
電池内に介在せしめた活性炭の拡散を防ぐ方法とした。According to the second aspect of the present invention, the separator wraps and covers the activated carbon (hereinafter, the activated carbon built-in separator).
A method was adopted to prevent the diffusion of activated carbon interposed in the battery.
【０００８】請求項３に於いて、セパレータの繊維に活
性炭を絡めた（以下、活性炭混成セパレータ）形態によ
り、電池内に介在せしめた活性炭の拡散を防ぐ方法とし
た。According to a third aspect of the present invention, there is provided a method for preventing diffusion of activated carbon interposed in a battery by using a form in which activated carbon is entangled with fibers of a separator (hereinafter, activated carbon hybrid separator).
【０００９】[0009]
【発明の詳細な説明】 請求項１に於いて、セパレータに粒状活性炭を接着する
にあたりセパレータに接着剤を塗布するには、凸版印
刷、凹版印刷、孔版印刷、等の方法が好ましい。上記、
孔版印刷方法に於いて、セパレータ上にセパレータ機能
を侵さない最小限の間隔（以下、適宜な間隔）で孔状の
目開き（以下、目開き）が設けてあるスクリーンを設置
し、次に、スクリーン上に接着剤をローラーで拡散圧着
すると、スクリーンの目開きを通過した接着剤が適宜な
間隔でセパレータに塗布される。次に、接着剤を塗布し
た状態のセパレータ上に粒状活性炭を散布すると、接着
剤塗布形状と同形状に適宜な間隔を保って粒状活性炭と
セパレータが固着する。尚、繊維状活性炭に於いても同
様の接着工程でセパレータと固着する。DETAILED DESCRIPTION OF THE INVENTION In the first aspect of the present invention, a method of letterpress printing, intaglio printing, stencil printing, or the like is preferable for applying an adhesive to the separator in bonding the granular activated carbon to the separator. the above,
In the stencil printing method, a screen provided with perforated apertures (hereinafter, apertures) is provided on the separator at a minimum interval that does not impair the separator function (hereinafter, an appropriate interval), and then, When the adhesive is spread and pressed on the screen by a roller, the adhesive that has passed through the openings of the screen is applied to the separator at appropriate intervals. Next, when the granular activated carbon is sprayed on the separator coated with the adhesive, the granular activated carbon and the separator are fixed at the same shape as the adhesive applied shape at an appropriate interval. The fibrous activated carbon is fixed to the separator in the same bonding step.
【００１０】又、請求項１に於いて、セパレータに粒状
活性炭或いは繊維状活性炭を溶着するには、そのセパレ
ータが高分子材であれば、セパレータ上のそれら活性炭
に任意の圧力をかけながら高周波を付与する誘電溶着加
工或いは前記同様な工程で、高分子材が熱溶着する例え
ば１３０℃程度の加熱を施す溶着加工が適切である。According to the first aspect of the present invention, in order to deposit granular activated carbon or fibrous activated carbon on the separator, if the separator is a polymer material, a high frequency is applied while applying any pressure to the activated carbon on the separator. In the dielectric welding process to be applied or the same process as above, a welding process in which the polymer material is thermally welded, for example, heating at about 130 ° C. is appropriate.
【００１１】尚、Incidentally,
【０００９】或いはOr,
【００１０】の項で記した工程をセパレータの両面に施
して粒状活性炭或いは繊維状活性炭を固着すると、それ
ら活性炭の固着量が倍増し電池内部抵抗の増幅をより強
く抑える効果をもつた活性炭複合セパレータが構成され
る。When the steps described in the above paragraph are performed on both surfaces of the separator to fix the granular activated carbon or fibrous activated carbon, the amount of the activated carbon fixed is doubled, and the activated carbon composite separator has the effect of suppressing the amplification of the battery internal resistance more strongly. Is configured.
【００１２】請求項２に於いて、セパレータに粒状或い
は繊維状の活性炭を内蔵するには、扁平な袋状或いはチ
ューブ状のセパレータにそれら活性炭を挿入し、挿入し
た箇所を密閉すればよい。According to the present invention, in order to incorporate granular or fibrous activated carbon into the separator, the activated carbon may be inserted into a flat bag-shaped or tube-shaped separator, and the inserted portion may be sealed.
【００１３】請求項３に於いて、粒状の活性炭或いは繊
維状活性炭を、セパレータの繊維に絡ませるには、例え
ば、電池用セパレータに多く用いられている不織布の代
表的製法である、繊維シート層（以下、フリース）の中
に熱接着性繊維を混合し溶融させて繊維間を結合するサ
ーマルボンド法では、フリース中にそれら活性炭を混和
すればよい。According to the third aspect of the present invention, in order to entangle the granular activated carbon or the fibrous activated carbon with the fibers of the separator, for example, a fiber sheet layer which is a typical method of producing a nonwoven fabric often used for battery separators is used. In the thermal bonding method in which heat-bondable fibers are mixed and melted in a fleece (hereinafter referred to as fleece), the activated carbon may be mixed in the fleece.
【００１４】尚、請求項１に記載の活性炭複合セパレー
タと、請求項２に記載の活性炭内蔵セパレータと、請求
項３に記載の活性炭混成セパレータに於いては、セパレ
ータの形状以外は活性炭が電池内に介在する位置或いは
作用など全て共通であるので、請求項２及び請求項３に
於ける実施例及び発明の効果の説明は、請求項１に於け
る実施例及び発明の効果と重複するので省略し、発明の
実施の形態と図面の簡単な説明についてのみ記載する。In the activated carbon composite separator according to the first aspect, the activated carbon built-in separator according to the second aspect, and the activated carbon hybrid separator according to the third aspect, except for the shape of the separator, activated carbon is contained in the battery. Since the position and the function of intervening are all common, the description of the effects of the embodiment and the invention in claims 2 and 3 is omitted because they overlap with the effects of the embodiment and the invention in claim 1. Only the embodiments of the invention and brief descriptions of the drawings are described.
【００１５】[0015]
【発明の実施の形態】請求項１に於ける実施の形態つい
て図面を参照して説明する。図１に於いて、BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention; In FIG.
【０００９】項の工程を経た接着剤４がセパレータ３上
に塗布されている状態で粒状活性炭１をセパレータ３に
散布すると、粒状活性炭１はセパレータ３上に固着し活
性炭複合セパレータを構成する。When the granular activated carbon 1 is sprayed on the separator 3 in a state where the adhesive 4 having undergone the step described above is applied on the separator 3, the granular activated carbon 1 is fixed on the separator 3 to form an activated carbon composite separator.
【００１６】図２に於いて、In FIG. 2,
【０００９】項の工程を経た接着剤４がセパレータ３上
に塗布されている状態で繊維状活性炭２をセパレータ３
に載置すると、繊維状活性炭２はセパレータ３上に固着
し活性炭複合セパレータを構成する。[0009] The fibrous activated carbon 2 is applied to the separator 3 while the adhesive 4 having been subjected to the above-mentioned step is applied on the separator 3.
, The fibrous activated carbon 2 adheres to the separator 3 to form an activated carbon composite separator.
【００１７】請求項２に於ける実施の形態ついて図面を
参照して説明する。図３に於いて、粒状活性炭１は、An embodiment according to claim 2 will be described with reference to the drawings. In FIG. 3, the granular activated carbon 1 is
【００１２】の工程を経て連鎖しているチューブ状セパ
レータ３と密閉部９からなる構造によって覆われた、活
性炭内蔵セパレータを構成する。A separator with a built-in activated carbon, which is covered by a structure composed of the tubular separator 3 and the sealing portion 9 which are linked through the above steps, is constituted.
【００１８】図４に於いて、繊維状活性炭２は、In FIG. 4, the fibrous activated carbon 2 is
【００１２】の工程を経て扁平な袋状のセパレータ３と
密閉部９からなる構造によって覆われた、活性炭内蔵セ
パータを構成する。Through the steps described above, a separator with a built-in activated carbon, which is covered with a structure including the flat bag-shaped separator 3 and the sealing portion 9, is formed.
【００１９】請求項３に於ける実施の形態ついて図面を
参照して説明する。図５に於いて、粒状活性炭１は、An embodiment according to claim 3 will be described with reference to the drawings. In FIG. 5, the granular activated carbon 1 is
【００１３】の工程を経てセパレータの繊維に絡んで固
定した、活性炭混成セパレータを構成する。[0013] An activated carbon hybrid separator fixed by being entangled with the fibers of the separator through the above steps.
【００２０】図６に於いて、電解液１１と、負極端子７
を連結して鉛負極活物質からなる負極５と正極端子８を
連結して酸化鉛正極活物質からなる正極６と、それら負
極５と正極６を一定間隔に保っていて両面に粒状活性炭
１を固着した活性炭複合セパレータの各部材が、電池槽
１０に内設してある状態でＰｂＢが構成されている。In FIG. 6, an electrolyte 11 and a negative electrode terminal 7 are shown.
Are connected to each other, and a negative electrode 5 made of a lead negative electrode active material and a positive electrode terminal 8 are connected to each other to form a positive electrode 6 made of a lead oxide positive electrode active material. The PbB is formed in a state where each of the fixed activated carbon composite separator members is provided inside the battery tank 10.
【００２１】図７に於いて、電解液１１と、負極端子７
を連結して鉛負極活物質からなる負極５と正極端子８を
連結して酸化鉛正極活物質からなる正極６と、それら負
極５と正極６を一定間隔に保っていて粒状活性炭１を内
蔵した活性炭内蔵セパレータの各部材が、電池槽１０に
内設してある状態でＰｂＢが構成されている。In FIG. 7, an electrolyte 11 and a negative electrode terminal 7
The negative electrode 5 made of a lead negative electrode active material and the positive electrode terminal 8 are connected to connect a positive electrode 6 made of a lead oxide positive electrode active material, and the negative electrode 5 and the positive electrode 6 are kept at a constant interval to incorporate the granular activated carbon 1. PbB is formed in a state where each member of the activated carbon built-in separator is provided inside the battery tank 10.
【００２２】図１、図２、図３、図４、図５の、粒状活
性炭１繊維状活性炭２セパレータ３接着剤４は、活性炭
複合セパレータ及び活性炭内蔵セパレータ及び活性炭混
成セパレータの構造を説明する概略拡大図で、実際の構
造はそれら各部材が緻密に連鎖している。又、図５及び
図６の電池構造は、化学電池の基本的構成を示したもの
で、活性炭複合セパレータ或いは活性炭内蔵セパレータ
を用いた電池の形状を限定するものではない。The granular activated carbon 1, fibrous activated carbon 2, separator 3 and adhesive 4 shown in FIGS. 1, 2, 3, 4 and 5 are schematic diagrams for explaining the structures of an activated carbon composite separator, an activated carbon built-in separator and an activated carbon hybrid separator. In the enlarged view, in the actual structure, those members are closely linked. 5 and 6 show the basic structure of a chemical battery, and do not limit the shape of a battery using an activated carbon composite separator or a separator incorporating activated carbon.
【００２３】[0023]
【実施例】図６から、サルフェーションを抑える働きを
確認するために、短時間にサルフェーションを形成せし
めるシュミレーションとして、電池規格表示６Ｎ２−２
Ａ−８の３セル構造既存ＰｂＢの１セルに、粒状活性炭
からなる活性炭複合セパレータを用いて実証のＰｂＢ
（以下、実証ＰｂＢ）とし、比較のための１セルは既存
ＰｂＢ現状品を用いた。又、双方セルには電解液、充電
及び放電、短絡等、全て同条件に於いて、以下の（Ａ）
（Ｂ）（Ｃ）からなる運転を施した。 （Ａ）２．５Ｖ定電圧で６０分充電後、充電後電池内部
抵抗を測定。 （Ｂ）１Ａ定電流で終止電圧を１．７Ｖとして放電後、
終止電圧１．７Ｖ時点の電池内部抗と終止電圧１．７Ｖ
迄の放電持続時間を測定。 （Ｃ）終止電圧１．７Ｖ迄放電後、負極端子７と正極端
子８を６０分短絡。 以上の実証運転を１２回反復した一連の運転各数値を以
下に記した。FIG. 6 shows a battery standard indication 6N2-2 as a simulation for forming sulfation in a short time in order to confirm the function of suppressing sulfation.
A-8 3-cell structure PbB demonstrated using an activated carbon composite separator made of granular activated carbon in one cell of existing PbB
(Hereinafter referred to as PbB), and one cell for comparison was an existing PbB as-is product. In both cells, under the same conditions such as electrolyte, charge and discharge, short circuit, etc., the following (A)
The operation consisting of (B) and (C) was performed. (A) After charging at a constant voltage of 2.5 V for 60 minutes, the internal resistance of the battery after charging was measured. (B) After discharging with a final voltage of 1.7 V at a constant current of 1 A,
The internal resistance of the battery at the end voltage of 1.7 V and the end voltage of 1.7 V
Measure the duration of discharge up to. (C) After discharging to a final voltage of 1.7 V, the negative electrode terminal 7 and the positive electrode terminal 8 were short-circuited for 60 minutes. A series of operation values obtained by repeating the above demonstration operation 12 times is shown below.
【００２４】 第１回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ３８．８ｍΩ ３３．３ｍΩ （Ｂ）の電池内部抵抗値 ６５．１ｍΩ ５９．８ｍΩ （Ｂ）の放電持続時間値 １７．２６秒 ２１．４３秒 第２回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ４０．２ｍΩ ４１．７ｍΩ （Ｂ）の電池内部抵抗値 ５９．４ｍΩ ７２．８ｍΩ （Ｂ）の放電持続時間値 ９．１５秒 ６．１２秒 第３回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ３９．３ｍΩ ３７．７ｍΩ （Ｂ）の電池内部抵抗値 ６１．２ｍΩ ６９．３ｍΩ （Ｂ）の放電持続時間値 １３．５４秒 １０．５０秒 第４回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ４０．１ｍΩ ６７．２ｍΩ （Ｂ）の電池内部抵抗値 ５８．６ｍΩ １０７．８ｍΩ （Ｂ）の放電持続時間値 １３．５３秒 ２．０３秒 第５回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ３５．２ｍΩ ７８．１ｍΩ （Ｂ）の電池内部抵抗値 ５２．８ｍΩ １１２．９ｍΩ （Ｂ）の放電持続時間値 １２．０９秒 １．３２秒 第６回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ３３．８ｍΩ ８７．３ｍΩ （Ｂ）の電池内部抵抗値 ４９．９ｍΩ １２１．４ｍΩ （Ｂ）の放電持続時間値 １１．１１秒 １．１６秒 第７回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ３２．８ｍΩ １７６．１ｍΩ （Ｂ）の電池内部抵抗値 ６７．６ｍΩ １８９．３ｍΩ （Ｂ）の放電持続時間値 １２．１６秒 ０．１６秒 第８回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ３３．３ｍΩ ２４０．ｍΩ （Ｂ）の電池内部抵抗値 ６９．２ｍΩ ２７０．ｍΩ （Ｂ）の放電持続時間値 １２．５６秒 ０．１秒 第９回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ３３．１ｍΩ ２９７．ｍΩ （Ｂ）の電池内部抵抗値 ７２．８ｍΩ ３２２．ｍΩ （Ｂ）の放電持続時間値 １１．１３秒 ０．１秒 第１０回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ３４．２ｍΩ ２９５．ｍΩ （Ｂ）の電池内部抵抗値 ６５．１ｍΩ ２１１．ｍΩ （Ｂ）の放電持続時間値 １７．２６秒 ０．１秒 第１１回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ３４．８ｍΩ １２４．ｍΩ （Ｂ）の電池内部抵抗値 ８０．５ｍΩ １３２．ｍΩ （Ｂ）の放電持続時間値 １５．５７秒 ０．６秒 第１２回運転 実証ＰｂＢ 既存ＰｂＢ （Ａ）の電池内部抵抗値 ３３．６ｍΩ １２９．９ｍΩ （Ｂ）の電池内部抵抗値 ８１．７ｍΩ １５６．６ｍΩ （Ｂ）の放電持続時間値 １８．１７秒 ０．１秒First Operation Demonstration PbB Battery internal resistance of existing PbB (A) 38.8 mΩ 33.3 mΩ Battery internal resistance of (B) 65.1 mΩ 59.8 mΩ (B) Discharge duration 17.26 Second 21.43 seconds Second operation demonstration PbB Battery internal resistance of existing PbB (A) 40.2 mΩ 41.7 mΩ Battery internal resistance of (B) 59.4 mΩ 72.8 mΩ (B) Discharge duration 9 .15 seconds 6.12 seconds Third operation demonstration PbB Battery internal resistance of existing PbB (A) 39.3 mΩ 37.7 mΩ Battery internal resistance of (B) 61.2 mΩ 69.3 mΩ (B) Discharge duration Value 13.54 seconds 10.50 seconds 4th operation Demonstration PbB Battery internal resistance value of existing PbB (A) 40.1 mΩ 67.2 mΩ Battery internal resistance value of (B) 58.6 mΩ 107.8 mΩ (B) Duration value 13.53 seconds 2.03 seconds Fifth operation Demonstration PbB Internal battery resistance value of existing PbB (A) 35.2 mΩ 78.1 mΩ (B) Battery internal resistance value 52.8 mΩ 112.9 mΩ (B) Discharge duration value of 12.09 seconds 1.32 seconds 6th operation demonstration PbB Existing battery resistance value of existing PbB (A) 33.8 mΩ 87.3 mΩ Battery internal resistance value of (B) 49.9 mΩ 121.4 mΩ ( B) Discharge duration value 11.11 seconds 1.16 seconds 7th operation Demonstration PbB Existing PbB (A) internal battery resistance value 32.8 mΩ 176.1 mΩ (B) internal battery resistance value 67.6 mΩ 189. Discharge duration value of 3 mΩ (B) 12.16 seconds 0.16 seconds 8th operation verification PbB Battery internal resistance value of existing PbB (A) 33.3 mΩ 240. mΩ (B) Battery internal resistance value 69.2 mΩ 270. Discharge duration value of mΩ (B) 12.56 seconds 0.1 seconds 9th operation Demonstration PbB Existing battery resistance of PbB (A) 33.1 mΩ 297. mΩ (B) Battery internal resistance value 72.8 mΩ 322. Discharge duration value of mΩ (B) 11.13 seconds 0.1 second 10th operation demonstration PbB Internal resistance value of existing PbB (A) battery 34.2 mΩ 295. Battery internal resistance value of mΩ (B) 65.1 mΩ 211. Discharge duration value of mΩ (B) 17.26 seconds 0.1 seconds 11th operation demonstration PbB Internal battery resistance value of existing PbB (A) 34.8 mΩ 124. Battery internal resistance value of mΩ (B) 80.5 mΩ 132. Discharge duration value of mΩ (B) 15.57 seconds 0.6 seconds 12th operation demonstration PbB Internal battery resistance value of existing PbB (A) 33.6 mΩ 129.9 mΩ Battery internal resistance value of (B) 81.7 mΩ Discharge duration value of 156.6 mΩ (B) 18.17 seconds 0.1 seconds
【００２５】[0025]
【発明の効果】上表運転に於ける、サルフェーションを
形成せしめる為の未充電状態での過放電と短絡からなる
反復運転の一連数値と、１２回反復運転後の負極と正極
の観察から発明の効果を以下に説明する。実証ＰｂＢは
第１２回運転に於いても正常な電池機能を保っている
が、一方の既存ＰｂＢは、第４回運転後の（Ａ）電池内
部抵抗値と（Ｂ）放電持続時間値が電池機能停止状態を
示している。又、第１２回運転後の既存ＰｂＢ負極と正
極は乳白色系のサルフェーション皮膜で覆われていた
が、実証ＰｂＢの負極４及び正極５は何らの異常もなか
った。以上の効果から、粒状活性炭からなる活性炭複合
セパレータは、急速充放電に係るサルフェーションを防
ぎ、電池に至便性と長寿命性をもたらした。According to the above table operation, the series of numerical values of the repetitive operation consisting of overdischarge and short circuit in the uncharged state for forming sulfation and the observation of the negative electrode and the positive electrode after the 12 repetitive operations in the above table operation show the invention. The effects will be described below. Demonstration PbB maintains a normal battery function even in the twelfth operation, while existing PbB has the battery (A) internal resistance and (B) discharge duration value after the fourth operation The function stop state is shown. The existing PbB negative electrode and the positive electrode after the twelfth operation were covered with a milky white sulfation film, but the negative electrode 4 and the positive electrode 5 of the demonstration PbB did not have any abnormality. From the above effects, the activated carbon composite separator made of granular activated carbon prevented sulfation related to rapid charge and discharge, and provided convenience and long life to the battery.
【００２６】[0026]
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明の、粒状活性炭からなる活性炭複合セパ
レータの縦断概略図FIG. 1 is a schematic longitudinal sectional view of an activated carbon composite separator comprising granular activated carbon of the present invention.
【図２】本発明の、繊維状活性からなる活性炭複合セパ
レータの縦断概略図FIG. 2 is a schematic longitudinal sectional view of an activated carbon composite separator made of fibrous activity according to the present invention.
【図３】本発明の、粒状活性炭からなる活性炭内蔵セパ
レータの縦断概略図FIG. 3 is a schematic longitudinal sectional view of the activated carbon built-in separator made of granular activated carbon of the present invention.
【図４】本発明の、繊維状活性炭からなる活性炭内蔵セ
パレータの縦断概略図FIG. 4 is a schematic longitudinal sectional view of a separator with a built-in activated carbon made of fibrous activated carbon of the present invention.
【図５】本発明の、粒状活性炭からなる活性炭混成セパ
レータの縦断概略図FIG. 5 is a schematic longitudinal sectional view of an activated carbon composite separator made of granular activated carbon of the present invention.
【図６】本発明の、粒状活性炭からなる活性炭複合セパ
レータを用いた鉛二次電池の縦断概略図FIG. 6 is a schematic longitudinal sectional view of a lead secondary battery using an activated carbon composite separator made of granular activated carbon of the present invention.
【図７】本発明の、粒状活性炭からなる活性炭内蔵セパ
レータを用いた鉛二次電池の縦断概略図FIG. 7 is a schematic longitudinal cross-sectional view of a lead secondary battery using an activated carbon built-in separator made of granular activated carbon of the present invention.
【００２７】[0027]
【符号の説明】 １は粒状活性炭 ２は繊維状活性炭 ３はセパレータ ４は接着剤 ５は負極 ６は正極 ７は負極端子 ８は正極端子 ９はセパレータ密閉部 １０は電池槽 １１は電解液[Description of Signs] 1 is granular activated carbon 2 is fibrous activated carbon 3 is a separator 4 is an adhesive 5 is a negative electrode 6 is a positive electrode 7 is a negative electrode terminal 8 is a positive electrode terminal 9 is a separator sealing portion 10 is a battery tank 11 is an electrolytic solution
【手続補正２】[Procedure amendment 2]
【補正対象書類名】図面[Document name to be amended] Drawing
【補正対象項目名】全図[Correction target item name] All figures
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図１】 FIG.
【図２】 FIG. 2
【図３】 FIG. 3
【図４】 FIG. 4
【図５】 FIG. 5
【図６】 FIG. 6
【図７】 FIG. 7
Claims (1)
化物からなる粒状活性炭或いは繊維状活性炭が接着剤で
固着されている構造を特徴とする二次電池のセパレー
タ。1. A separator for a secondary battery, wherein a granular activated carbon or a fibrous activated carbon made of a carbide having a specific surface area of 300 m 2 / g or more is fixed to the surface with an adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000369244A JP2002134086A (en) | 2000-10-30 | 2000-10-30 | Activated carbon composite separator for battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000369244A JP2002134086A (en) | 2000-10-30 | 2000-10-30 | Activated carbon composite separator for battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002134086A true JP2002134086A (en) | 2002-05-10 |
Family
ID=18839313
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000369244A Pending JP2002134086A (en) | 2000-10-30 | 2000-10-30 | Activated carbon composite separator for battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002134086A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112006001902T5 (en) | 2005-07-20 | 2008-07-03 | Ion Technology Inc. | power generating device |
| WO2012165624A1 (en) * | 2011-06-03 | 2012-12-06 | 富士シリシア化学株式会社 | Separator, electrochemical element, and method for manufacturing separator |
| JP2013157266A (en) * | 2012-01-31 | 2013-08-15 | Yamagata Univ | Separator for nonaqueous electrolyte secondary battery, method of manufacturing the same, and nonaqueous electrolyte secondary battery |
| JP2017515284A (en) * | 2014-05-05 | 2017-06-08 | ダラミック エルエルシー | Improved lead-acid battery separator, battery and method for producing them |
| WO2022034918A1 (en) * | 2020-08-14 | 2022-02-17 | 旭化成株式会社 | Separator for lead storage battery and lead storage battery |
-
2000
- 2000-10-30 JP JP2000369244A patent/JP2002134086A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112006001902T5 (en) | 2005-07-20 | 2008-07-03 | Ion Technology Inc. | power generating device |
| WO2012165624A1 (en) * | 2011-06-03 | 2012-12-06 | 富士シリシア化学株式会社 | Separator, electrochemical element, and method for manufacturing separator |
| JPWO2012165624A1 (en) * | 2011-06-03 | 2015-02-23 | 富士シリシア化学株式会社 | Separator and electrochemical element |
| JP2013157266A (en) * | 2012-01-31 | 2013-08-15 | Yamagata Univ | Separator for nonaqueous electrolyte secondary battery, method of manufacturing the same, and nonaqueous electrolyte secondary battery |
| JP2017515284A (en) * | 2014-05-05 | 2017-06-08 | ダラミック エルエルシー | Improved lead-acid battery separator, battery and method for producing them |
| CN111628132A (en) * | 2014-05-05 | 2020-09-04 | 戴瑞米克有限责任公司 | Improved lead acid battery separator, electrode, battery and method of manufacture and use thereof |
| JP2021093372A (en) * | 2014-05-05 | 2021-06-17 | ダラミック エルエルシー | Improved lead-acid battery separators, batteries, and manufacturing methods therefor |
| US11152647B2 (en) | 2014-05-05 | 2021-10-19 | Daramic, Llc | Lead-acid battery separators, electrodes, batteries, and methods of manufacture and use thereof |
| JP7307108B2 (en) | 2014-05-05 | 2023-07-11 | ダラミック エルエルシー | Improved lead-acid battery separator, carbon sheet and lead-acid battery |
| WO2022034918A1 (en) * | 2020-08-14 | 2022-02-17 | 旭化成株式会社 | Separator for lead storage battery and lead storage battery |
| JPWO2022034918A1 (en) * | 2020-08-14 | 2022-02-17 | ||
| JP7412571B2 (en) | 2020-08-14 | 2024-01-12 | 旭化成株式会社 | Separators for lead-acid batteries and lead-acid batteries |
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