JPH0195465A - Closed type lead battery - Google Patents
Closed type lead batteryInfo
- Publication number
- JPH0195465A JPH0195465A JP62251818A JP25181887A JPH0195465A JP H0195465 A JPH0195465 A JP H0195465A JP 62251818 A JP62251818 A JP 62251818A JP 25181887 A JP25181887 A JP 25181887A JP H0195465 A JPH0195465 A JP H0195465A
- Authority
- JP
- Japan
- Prior art keywords
- glass fiber
- fiber mat
- less
- electrolyte
- electrode plate
- 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
- 239000003792 electrolyte Substances 0.000 claims abstract description 22
- 239000003365 glass fiber Substances 0.000 claims abstract description 17
- 239000000835 fiber Substances 0.000 claims abstract description 7
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 5
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 5
- 239000000057 synthetic resin Substances 0.000 claims abstract description 5
- 239000002253 acid Substances 0.000 claims description 13
- 239000001913 cellulose Substances 0.000 claims description 4
- 229920002678 cellulose Polymers 0.000 claims description 4
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract description 5
- 229910001882 dioxygen Inorganic materials 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 4
- 101100495270 Caenorhabditis elegans cdc-26 gene Proteins 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 8
- 230000000638 stimulation Effects 0.000 description 5
- 239000003349 gelling agent Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000012229 microporous material Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 241000219112 Cucumis Species 0.000 description 1
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 1
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000009783 overcharge test Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/34—Gastight accumulators
- H01M10/342—Gastight lead accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/431—Inorganic material
- H01M50/434—Ceramics
- H01M50/437—Glass
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/44—Fibrous material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0002—Aqueous electrolytes
- H01M2300/0005—Acid electrolytes
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Cell Separators (AREA)
- Secondary Cells (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は密閉式ｔ！Ｘｉ蓄電池の改良、特に低率および
高率放電性能のすぐれた密閉式鉛蓄電池に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is a closed type T! This invention relates to improvements in Xi storage batteries, particularly sealed lead-acid batteries with superior low rate and high rate discharge performance.
従来の技術とその問題°点
密閉式鉛Ｔｔ′ｒｃ池では無漏液化のために、電解液を
非流動化している。現在、電解液を非流動化する方式と
して、電解液に無水ケイ酸などを添加してゲル化する方
式（ゲル式電池）と吸液性にすぐれたガラス繊維マット
を隔離体に用いて正・負極板および隔離体に電解液を保
持させる方式（リテーナ式電池）とが用いられている。Conventional techniques and their problems In closed type lead Tt'rc ponds, the electrolyte is made non-fluidized in order to prevent leakage. Currently, there are two methods to make the electrolyte non-fluid: one is to add silicic acid anhydride to the electrolyte and turn it into a gel (gel type battery), and the other is to use a glass fiber mat with excellent liquid absorption as a separator. A method (retainer type battery) is used in which the electrolyte is held in the negative electrode plate and the separator (retainer type battery).
リテーナ式電池は、電解液量を正・負極板および隔離体
への吸収、保持限ｆｉ ｆｆｉ以下とする必要があるの
で電解液量によって制限される低率放電容量が小さいこ
とと、隔離体として用いるガラス繊維マットが高価であ
るという欠点があった。Retainer type batteries have a small low rate discharge capacity limited by the amount of electrolyte because the amount of electrolyte needs to be below the absorption and retention limit fi ffi in the positive and negative electrode plates and separator. The disadvantage is that the glass fiber mat used is expensive.
一方、ゲル式電池では電解液自身がゲル化によって非流
動化されているために、正・負極板および隔離体への吸
収、保持限度量以上の電解′ａ吊とすることができるの
で低率放電容ｆｆｉはすぐれているが、電解液がゲル化
されているため電解液中の１ｉｉＩＩ酸イオンの拡散ｉ
！瓜が遅く、硫酸イオンの拡散速度によってｖｊ限され
る？′！ｉ字放電容吊が劣っている。On the other hand, in gel-type batteries, the electrolyte itself is non-fluid due to gelation, so it can be absorbed into the positive and negative electrode plates and the separator, and the electrolysis rate can be increased to more than the retention limit. The discharge capacity ffi is excellent, but because the electrolyte is gelled, the diffusion of 1iiiIII acid ions in the electrolyte is
! Melon is slow and vj is limited by the diffusion rate of sulfate ions? ′! I-shaped discharge capacity is poor.
このゲル式電池で高率放電容量を改善するには無水ケイ
酸などのゲル化剤の添加旦を少なくして電解液中の硫酸
イオンが拡散しやすくすればよいが、ゲル化剤の添加伍
を少なくすると、過充電中に正極板より発生する酸素ガ
スの物理的刺激によってゲルがこわれて電解液が′１ｒ
ＬＩＩＩｌｔシ、この遊離した電解液が流動液となって
漏液の原因となるので、ゲル化剤の添加岱を少なくする
ことは困難であった。In order to improve the high rate discharge capacity of this gel type battery, it is possible to reduce the amount of time gelling agents such as silicic anhydride are added to make it easier for sulfate ions in the electrolyte to diffuse. If the amount is decreased, the gel will be broken due to the physical stimulation of oxygen gas generated from the positive electrode plate during overcharging, and the electrolyte will be
However, since this liberated electrolyte becomes a flowing liquid and causes leakage, it has been difficult to reduce the amount of gelling agent added.
問題点を解決するための手段
本発明はこのような欠点を除去するもので、電解液を無
水ケイ酸などでゲル化させた密閉式鉛蓄電池において、
平均４ＨＮ径１０μ以下の吸液性にすぐれたガラス繊維
マットを正極板に当接させ、別の多孔体を負極板に当接
させることによって、ゲル式電池の高率放電性能を改善
し、低率および高率放電性能のすぐれた密閉式鉛蓄電池
の製造を可能とするものである。Means for Solving the Problems The present invention aims to eliminate these drawbacks, and provides a sealed lead-acid battery in which the electrolyte is gelled with anhydrous silicic acid or the like.
By bringing a highly absorbent glass fiber mat with an average 4HN diameter of 10μ or less into contact with the positive electrode plate and another porous material into contact with the negative electrode plate, the high rate discharge performance of the gel type battery can be improved and the low This makes it possible to manufacture sealed lead-acid batteries with excellent rate and high rate discharge performance.
実施例
以下、本発明密閉式鉛蓄電池を実施例により詳細に説明
する。EXAMPLES Hereinafter, the sealed lead-acid battery of the present invention will be explained in detail with reference to examples.
第１図は本発明電池に用いる極板群の各構成要素を配列
順に示す斜視図であり、１は正極板、２は負極板である
。正・負極板１，２間には合成樹脂よりなる微孔性多孔
体３と平均繊維径５μのガラス繊維マット４とを重ね合
わせた隔離体５が挿入されている。FIG. 1 is a perspective view showing the constituent elements of the electrode plate group used in the battery of the present invention in the order in which they are arranged; 1 is a positive electrode plate, and 2 is a negative electrode plate. A separator 5 is inserted between the positive and negative electrode plates 1 and 2, in which a microporous body 3 made of synthetic resin and a glass fiber mat 4 having an average fiber diameter of 5 μm are superimposed.
負極板に合成樹脂またはセルロースよりなる微孔性多孔
体を、正極板に平均繊維径がそれぞれ２０μ、１０μ、
５μのガラス繊維マットを当接させて極板群を組み立て
、種々の５Ｉ０２′ａ度で電解液をゲル化させた密閉式
鉛蓄電池を試作し、低率（２０ｈＲ）および高率（１ｈ
Ｒ）放電試験と過充電試験（０，０５Ｃｘ１０ｈ ）と
を行い、その放電容量と過充電後のセル当りの流動液量
を求めた。その結果を第１表に示す。なお、セル当りの
全電解液間は６０ ｍ兄とした。The negative electrode plate is made of a microporous material made of synthetic resin or cellulose, and the positive electrode plate is made of a microporous material with an average fiber diameter of 20μ and 10μ, respectively.
Prototype sealed lead-acid batteries were fabricated by assembling electrode plates by bringing 5μ glass fiber mats into contact with each other and gelling the electrolyte at various 5I02'a degrees.
R) A discharge test and an overcharge test (0.05C x 10h) were conducted, and the discharge capacity and the amount of flowing liquid per cell after overcharge were determined. The results are shown in Table 1. Note that the total distance between the electrolytes per cell was 60 m.
第１表から明らかなように、ゲル式電池で５Ｉ０２添加
口を少なくすると低率放電容量、高率放電容量のいずれ
も改善されるが、特に高率放電容量が大きく改善される
ことがわかる。As is clear from Table 1, reducing the number of 5I02 addition ports in a gel type battery improves both the low rate discharge capacity and the high rate discharge capacity, but it can be seen that the high rate discharge capacity in particular is greatly improved.
しかし、Ｓ＋０２添加吊を少なくすると過充電時に正極
板より発生する酸素ガスの物理的刺激によってゲルがこ
われて遊Ｍ電解液が生じ、従来品（Ｎｏ、１〜３）のよ
うに吸液性の乏しいガラス繊維マット（平均Ｕ＆維径２
０μ）を使用している場合にはこのｙ７１離電解液が流
動液としてセル内に残り、漏液の原因となるので５１０
２添加量を少なくすることができない。ところが、本発
明品（Ｎｏ。However, if the amount of S+02 added is reduced, the gel will be broken due to the physical stimulation of oxygen gas generated from the positive electrode plate during overcharging, and a free M electrolyte will be generated, resulting in a liquid-absorbing property like that of conventional products (Nos. 1 to 3). Poor glass fiber mat (average U & fiber diameter 2
0μ), this y71 electrolyte remains in the cell as a flowing liquid and causes leakage, so 510
2. It is not possible to reduce the amount added. However, the product of the present invention (No.
５〜７）のように平均繊１ｇ１ｏμ以下の吸）１２性の
すぐれたガラス繊維マットを正極板に当接させた場合に
は酸素ガスの物理的刺激によってゲルがこわれて生じた
Ｍｆ＆電解液をガラス繊維マットがただちに吸収して非
流動化するために、漏液の原因となる流動液を生じさせ
ることなしにｓｌ ０２添加量を少なくでき、高率放電
容量を大幅に改善づることが可能となる。When a glass fiber mat with excellent adhesion properties of less than 1g1oμ as in 5-7) is brought into contact with the positive electrode plate, the gel is broken by the physical stimulation of oxygen gas and the resulting Mf & electrolyte are released. Since the glass fiber mat immediately absorbs and becomes non-fluid, the amount of SL02 added can be reduced without creating a flowing liquid that causes leakage, making it possible to significantly improve high rate discharge capacity. Become.
なお、密閉式鉛蓄電池の場合、通常の使用状態では負極
板から水素ガスが全く発生しないか、発生してもごく微
量であるので、水素ガスの物理的刺激によってゲルがこ
われてｙｒ１１！Ｉｔ電解液を生じることはほとんどな
い。したがって負１少１反１こ１九１ＩＩＩな吸液性に
すぐれたガラス繊維マットを当接させる必要はなく、安
価な合成８１脂をセルロースよりなる微孔性多孔体を当
接させれば充分である。In the case of a sealed lead-acid battery, under normal usage conditions, no hydrogen gas is generated from the negative electrode plate, or even if it is generated, it is only a very small amount, so the physical stimulation of the hydrogen gas can cause the gel to break down and cause yr11! It rarely produces an It electrolyte. Therefore, there is no need to contact a glass fiber mat with excellent liquid absorption properties, and it is sufficient to contact a microporous material made of cellulose with inexpensive synthetic 81 fat. It is.
上述したように、電解液を無水ケイ酸などでゲル化させ
、平均、俄Ｎ径１０μ以下のガラス繊維マットと主とし
て合成樹脂あるいはセルロースよりなる微孔性７孔体と
を重ね合わせた隔離体を用いた本発明品は、無水ケイ酸
などのゲル化剤の添加量を少なくした時に、正極板より
発生する酸素ガスの物理的刺激によってゲルがこわれて
生じる′ｔ１１！１液を正極板に当接されたガラス繊維
マットがただちに吸収・保持して非流動化することによ
り、漏液の原因となる流動液を生じさせることなくゲル
化剤の添加量を少なくすることができ、その結果、低率
および高率放電合間共にすぐれた密閉式鉛蓄電池の製）
青が可能となった。As mentioned above, the electrolyte is gelled with anhydrous silicic acid, etc., and a separator is formed by laminating a glass fiber mat with an average N diameter of 10μ or less and a microporous 7-pore body mainly made of synthetic resin or cellulose. In the product of the present invention used, when the amount of gelling agent such as silicic anhydride is reduced, the gel is broken by the physical stimulation of oxygen gas generated from the positive electrode plate, and the 't11!1 liquid is applied to the positive electrode plate. The glass fiber mat that comes in contact with it immediately absorbs and retains it and becomes non-fluid, making it possible to reduce the amount of gelling agent added without creating a flowing liquid that can cause leakage. (Made of sealed lead-acid battery with excellent rate and high rate discharge interval)
Blue is now available.
発明の効果
本発明は、低率および高率放電容最共にすぐれた無漏液
の密閉式鉛蓄電池の製造に６効であり、その■末的ＩＩ
！Ｉｉ値が非常に大である。Effects of the Invention The present invention has six effects on manufacturing a leak-free sealed lead-acid battery with the best low-rate and high-rate discharge capacity, and its final point II.
! The Ii value is very large.
第１図は本発明電池に用いる極板群の各構成要素を配列
順に示す斜視図である。
１・・・正極板、２・・・負極板、３・・・微孔性多孔
体、４・・・ガラス繊維マット、５・・・隔離体第１図FIG. 1 is a perspective view showing the respective constituent elements of the electrode plate group used in the battery of the present invention in the order in which they are arranged. DESCRIPTION OF SYMBOLS 1... Positive electrode plate, 2... Negative electrode plate, 3... Microporous porous body, 4... Glass fiber mat, 5... Separator Figure 1
Claims (1)
電池において、平均繊維径１０μ以下のガラス繊維マッ
トと多孔体とを重ね合わせた隔離体を用いることを特徴
とする密閉式鉛蓄電池。 ２、多孔体が主として合成樹脂よりなる微孔性多孔体で
ある特許請求の範囲第１項記載の密閉式鉛蓄電池。 ３、多孔体が主としてセルロースよりなる微孔性多孔体
である特許請求の範囲第１項記載の密閉式鉛蓄電池。[Claims] 1. A sealed lead-acid battery in which the electrolyte is gelled with anhydrous silicic acid, etc., characterized in that a separator is used in which a glass fiber mat with an average fiber diameter of 10 μm or less and a porous body are superimposed. A sealed lead-acid battery. 2. The sealed lead-acid battery according to claim 1, wherein the porous body is a microporous body mainly made of synthetic resin. 3. The sealed lead-acid battery according to claim 1, wherein the porous body is a microporous body mainly composed of cellulose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62251818A JPH0195465A (en) | 1987-10-06 | 1987-10-06 | Closed type lead battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62251818A JPH0195465A (en) | 1987-10-06 | 1987-10-06 | Closed type lead battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0195465A true JPH0195465A (en) | 1989-04-13 |
Family
ID=17228374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62251818A Pending JPH0195465A (en) | 1987-10-06 | 1987-10-06 | Closed type lead battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0195465A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01175175A (en) * | 1987-12-28 | 1989-07-11 | Shin Kobe Electric Mach Co Ltd | Sealed type lead-acid battery |
| US5300991A (en) * | 1992-04-14 | 1994-04-05 | Konica Corporation | Image forming apparatus with toner replenisher |
| US7682738B2 (en) | 2002-02-07 | 2010-03-23 | Kvg Technologies, Inc. | Lead acid battery with gelled electrolyte formed by filtration action of absorbent separators and method for producing it |
| JP2017168239A (en) * | 2016-03-15 | 2017-09-21 | 株式会社Ｇｓユアサ | Control valve type lead storage battery |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5266929A (en) * | 1975-12-01 | 1977-06-02 | Yuasa Battery Co Ltd | Method of producing lead battery separator |
-
1987
- 1987-10-06 JP JP62251818A patent/JPH0195465A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5266929A (en) * | 1975-12-01 | 1977-06-02 | Yuasa Battery Co Ltd | Method of producing lead battery separator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01175175A (en) * | 1987-12-28 | 1989-07-11 | Shin Kobe Electric Mach Co Ltd | Sealed type lead-acid battery |
| US5300991A (en) * | 1992-04-14 | 1994-04-05 | Konica Corporation | Image forming apparatus with toner replenisher |
| US7682738B2 (en) | 2002-02-07 | 2010-03-23 | Kvg Technologies, Inc. | Lead acid battery with gelled electrolyte formed by filtration action of absorbent separators and method for producing it |
| JP2017168239A (en) * | 2016-03-15 | 2017-09-21 | 株式会社Ｇｓユアサ | Control valve type lead storage battery |
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