JPH02201871A - Sealed lead-acid battery - Google Patents
Sealed lead-acid batteryInfo
- Publication number
- JPH02201871A JPH02201871A JP1021398A JP2139889A JPH02201871A JP H02201871 A JPH02201871 A JP H02201871A JP 1021398 A JP1021398 A JP 1021398A JP 2139889 A JP2139889 A JP 2139889A JP H02201871 A JPH02201871 A JP H02201871A
- Authority
- JP
- Japan
- Prior art keywords
- lead
- active material
- lead oxide
- acid battery
- battery
- 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
- 239000002253 acid Substances 0.000 title claims abstract description 11
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910000464 lead oxide Inorganic materials 0.000 claims abstract description 15
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 6
- 239000000956 alloy Substances 0.000 claims abstract description 6
- 238000004898 kneading Methods 0.000 claims abstract description 6
- 239000007774 positive electrode material Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910020816 Sn Pb Inorganic materials 0.000 claims abstract 3
- 229910020922 Sn-Pb Inorganic materials 0.000 claims abstract 3
- 229910008783 Sn—Pb Inorganic materials 0.000 claims abstract 3
- 239000000835 fiber Substances 0.000 claims description 7
- 239000003365 glass fiber Substances 0.000 claims description 4
- YADSGOSSYOOKMP-UHFFFAOYSA-N dioxolead Chemical compound O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 claims 2
- 239000007773 negative electrode material Substances 0.000 claims 1
- 239000011149 active material Substances 0.000 abstract description 24
- 239000002245 particle Substances 0.000 abstract description 14
- 239000003792 electrolyte Substances 0.000 abstract description 6
- 230000014759 maintenance of location Effects 0.000 abstract description 4
- 230000000717 retained effect Effects 0.000 abstract description 3
- XMFOQHDPRMAJNU-UHFFFAOYSA-N lead(ii,iv) oxide Chemical compound O1[Pb]O[Pb]11O[Pb]O1 XMFOQHDPRMAJNU-UHFFFAOYSA-N 0.000 abstract 4
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 239000001999 grid alloy Substances 0.000 abstract 1
- HWSZZLVAJGOAAY-UHFFFAOYSA-L lead(II) chloride Chemical compound Cl[Pb]Cl HWSZZLVAJGOAAY-UHFFFAOYSA-L 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910000978 Pb alloy Inorganic materials 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000006259 organic additive Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000126 substance Substances 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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/68—Selection of materials for use in lead-acid accumulators
- H01M4/685—Lead alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/56—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of lead
- H01M4/57—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of lead of "grey lead", i.e. powders containing lead and lead oxide
-
- 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)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Cell Separators (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ポータプル機器用として、あるいは防災用と
して広く用いられている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 relates to a sealed lead-acid battery that is widely used for portable equipment or for disaster prevention.
従来の技術
密閉式鉛蓄電池は、高い経済性と取扱いの手軽さからポ
ータブ）ｖ Ｖ’ Ｔ Ｒｙボータプルテレビをはじめ
とする多くのポータプル機器の電源として用いられてい
る。BACKGROUND OF THE INVENTION Sealed lead-acid batteries are used as power sources for many portable devices, including portable televisions, because of their high cost efficiency and ease of handling.
この種の用法において電源に要求される特性は、電池に
ついては小形軽量で゛あること、取扱いが容易であるこ
との二つが主である。The two main characteristics required of a power source in this type of usage are that the battery be small and lightweight, and that it be easy to handle.
前者の小形軽量化の方法として、一般にプラスチック部
品をはじめ電池構成のすべての部品を小形化−軽量化し
ていく方法が取られるが、その中でも正極活物質と負極
活物質の利用率を向上させ、軽量化を図ることが効果的
である。The former method of reducing size and weight generally involves reducing the size and weight of all parts of the battery, including plastic parts. It is effective to reduce the weight.
活物質の利用率を向上させる方法としては、カーボンの
ような電子伝導性物質を添加する方法や、あるいは活物
質の密度を小さくし、活物質の反応の比表面積を大きく
する方法が行われている。Methods to improve the utilization rate of active materials include adding electronically conductive substances such as carbon, or decreasing the density of the active material and increasing the specific surface area for reaction of the active material. There is.
発明が解決しようとする課題
上記のような活物質を低密度化し、軽量化しようとする
従来の手法による電池を急速充電器による充放電サイク
ルを行った場合、正極活物質中でカーボンが酸化されて
二酸化炭素として分解されたり、活物質の密度が小さい
場合は活物質粒子間の電子伝導性が低くなるという問題
がみられた。Problems to be Solved by the Invention When a battery manufactured using the conventional method of reducing the density and weight of the active material as described above is subjected to charge/discharge cycles using a rapid charger, carbon in the positive electrode active material is oxidized. When the active material is decomposed into carbon dioxide, and the density of the active material is low, there are problems in that the electronic conductivity between the active material particles decreases.
すなわち、電池の内部インピーダンスが高くなるため充
電が困難となり、活物質の溶解析出が行われにくくなシ
、活物質自身が微粒子化され、その結果電池の内部抵抗
の増加が生じ、電池容量の低下が加速されるという結果
を招いた。In other words, the internal impedance of the battery increases, making charging difficult, making it difficult to dissolve and deposit the active material, and the active material itself becoming fine particles, resulting in an increase in the internal resistance of the battery and a decrease in battery capacity. This resulted in an acceleration of
そのため、活物質問の結合力の低い、微細な活物質粒子
が生成し、充放電サイクル寿命ばかりではなく、電池を
過充電した場合にも電池容量の著しい低下を招いていた
。As a result, fine active material particles with low bonding strength between living materials are produced, which causes not only a shortened charge/discharge cycle life but also a significant reduction in battery capacity when the battery is overcharged.
本発明は上記問題点を解決するものであり、軽量で、小
形の密閉式鉛蓄電池のサイクル寿命の特性を向上させ、
同時に耐過充電特性の向上を目的とするものである。The present invention solves the above problems, and improves the cycle life characteristics of a lightweight, small-sized sealed lead-acid battery.
At the same time, the purpose is to improve overcharge resistance characteristics.
課題を解決するだめの手段
上記問題点を解決するために本発明は、活物質密度を小
さくした場合においても、サイクル寿命時の容量低下の
ない小形軽量の密閉型鉛蓄電池を提供するものであシ、
正極活物質に鉛丹化率９０チ以下の鉛酸化物を含む鉛粉
と水、希硫酸を主成分として練合したペーストを用いる
ことを特徴としている。鉛丹化率９０％以下の鉛酸化物
は、粒子表面のみの鉛丹化が進行し、内部は一酸化鉛が
主体の粒子からなるため、ペーストの練合によっても活
物質粒子間の結合力に優れ、充放電における活物質粒子
の微細化を抑制することができる。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a small and lightweight sealed lead-acid battery that does not have a capacity drop during its cycle life even when the density of the active material is reduced. C,
The positive electrode active material is characterized by using a paste made by kneading lead powder containing lead oxide with a lead chloride rate of 90 or less, water, and dilute sulfuric acid as main components. For lead oxides with a lead redness rate of 90% or less, lead redness progresses only on the surface of the particles, and the interior consists of particles mainly composed of lead monoxide, so the bonding strength between the active material particles is reduced even when the paste is kneaded. It has excellent properties and can suppress the miniaturization of active material particles during charging and discharging.
加えて、正極格子合金にＳｎ濃度が１．５％以上のＣａ
−８ｎ−Ｐｂ合金を用いることによシ、活物質粒子と正
極格子体の密着性をさらに向上させることができる。In addition, Ca with a Sn concentration of 1.5% or more is added to the positive electrode lattice alloy.
By using the -8n-Pb alloy, it is possible to further improve the adhesion between the active material particles and the positive electrode grid.
さらに、ガラスマット状セパレータの繊維１１をコント
ロールすることによシ、内部抵抗が低く、かつ電解液の
保持液量の大きいセパレータを用いることにより、活物
質とセパレータの密着性に優れた電池とすることができ
、活物質粒子の微粒子化を抑制し充放電サイクル寿命、
耐過充電特性を向上させると共に活物質を軽量化するこ
とができる。Furthermore, by controlling the fibers 11 of the glass mat-like separator, a separator with low internal resistance and a large amount of electrolyte retained can be used, resulting in a battery with excellent adhesion between the active material and the separator. This can suppress the atomization of active material particles and improve the charge/discharge cycle life.
The overcharge resistance characteristics can be improved and the weight of the active material can be reduced.
作 用
上記の方法によシ、低密度で活物質の利用率が高く、ま
た鉛丹化率９０％以下の鉛酸化物添加により、活物質粒
子の結合力が強化され、充放電サイクル寿命、電解液保
持能力に優れ、耐過充電特性に優れた電池の提供が可能
となる。Effect The method described above has a high active material utilization rate with low density, and the addition of lead oxide with a lead chloride rate of 90% or less strengthens the bonding force of the active material particles, increasing the charge/discharge cycle life. It becomes possible to provide a battery that has excellent electrolyte retention ability and excellent overcharge resistance characteristics.
実施例 以下、本発明の実施例により説明する。Example The present invention will be explained below using examples.
正極板として、Ｓｎ濃度が１．３，１．５ 、１．８．
２．２゜２．５係の５ｎ−０，０８％Ｃａ−Ｐｂ合金よ
りなる格子に酸化鉛、鉛丹化率８６チの鉛酸化物、水、
希硫酸を練り合わせたペースＩ−を充填し、化成した厚
さ３．０聾、長さ４０ｒｍ、幅２５調のものを用意した
。鉛丹化率８５％鉛酸化物の添加量は５０％。As a positive electrode plate, the Sn concentration is 1.3, 1.5, 1.8.
2.2゜A lattice made of 5n-0,08% Ca-Pb alloy with a ratio of 2.5 was coated with lead oxide, lead oxide with a lead salinity of 86, water,
Filled with PACE I-, which was mixed with dilute sulfuric acid, a chemically formed mold was prepared with a thickness of 3.0 mm, a length of 40 rm, and a width of 25 mm. Red lead rate is 85%, and the amount of lead oxide added is 50%.
８０チ、９０係とした。There were 80 and 90 staff.
負極板としてはＰｂ−Ｃａ−３ｒｓ合金よりなる格子に
酸化鉛、硫酸バリウム、有機添加剤、水、希硫酸等を練
り合わせたペーストを充填し化成した厚さ１゜５■、長
さ４０ ｔｍ、幅２５ｍのものを用意し、２枚の正極板
と３枚の負極板を組み合せ、極板間には微細なガラス繊
維からなるマット状セパレータを挿入し、電解液には比
重１．３０の希硫酸を用いた。また、比較ｄために添加
物を含まない従来品をも試作した。The negative electrode plate was formed by filling a lattice made of Pb-Ca-3rs alloy with a paste made by kneading lead oxide, barium sulfate, organic additives, water, dilute sulfuric acid, etc., and forming a chemical compound with a thickness of 1°5 and a length of 40 tm. A width of 25 m was prepared, and two positive electrode plates and three negative electrode plates were combined, a mat separator made of fine glass fiber was inserted between the electrode plates, and a dilute electrolyte with a specific gravity of 1.30 was inserted. Sulfuric acid was used. In addition, a conventional product containing no additives was also prototyped for comparison.
活物質量は従来例で正極が２３．Ｏｆ！／セル、負極が
２１．８ｙ／七ルであり、これらの電池は従来例を基準
とした場合、１０時間率容量２．ｏＡｈとなりそれぞれ
６セル接続し１２Ｖ／２．ｏＡｈの電池とした。In the conventional example, the amount of active material in the positive electrode is 23. Of! /cell, and the negative electrode is 21.8y/7l, and these batteries have a 10 hour rate capacity of 2.8y/7y, based on the conventional example. oAh, 6 cells connected each, 12V/2. It was used as an oAh battery.
セパレータは、平均繊維径が０．８μｍのガラス繊維を
抄紙し、繊維密度を０．１２ 、００１８，０．２０２
／Ｉ とした。The separator is made of glass fiber with an average fiber diameter of 0.8 μm, and the fiber density is 0.12, 0018, 0.202.
/I.
これらの電池を１６０の定抵抗にて放電終止電圧１０．
５Ｖ４ で放Ｋｌ、、１４．７Ｖ／１．８ ＡｔＤ定重
圧にて３時間充電したときの充放電サイクル寿命を第１
図に示す。The final discharge voltage of these batteries was 10.
The charge/discharge cycle life when charged for 3 hours at 5V4 and 14.7V/1.8 AtD constant pressure is the first
As shown in the figure.
また、０．７５Ａの定電流で放電終止電圧１ｏ、６Ｖま
で連続放電した際の放電時間と各種添加物との関係を第
２図、第３図に示す。Further, FIGS. 2 and 3 show the relationship between discharge time and various additives when continuous discharge was performed at a constant current of 0.75 A to a discharge end voltage of 1o and 6 V.
鉛丹化率の低い鉛酸化物を添加することにより、格子の
Ｓｎ濃度と併せて充放電サイクル寿命に優れた電池とな
る。セパレータ繊維密度は実施例範囲で電解液の保持液
量が増加するだめ、放電時間の増加がみられる。By adding lead oxide with a low lead chloride rate, a battery with excellent charge/discharge cycle life can be obtained in combination with the Sn concentration of the lattice. As the separator fiber density increases within the range of Examples, the discharge time increases as the amount of electrolyte retained increases.
第２図、第３図にはこれらの電池をｏ、１ｃＡ定電流に
て連続過充電した時の容量維持率を示した。Figures 2 and 3 show the capacity retention rates when these batteries were continuously overcharged at a constant current of 1 cA.
いずれも本発明品の方が優れた特性となる。また、鉛丹
化率９０％以下の鉛酸化物を添加する際、その添加量が
１０チ以下では従来例と変らず、６゜チをこえるとペー
ストの酸化が進みやすくなシ、好ましくなかった。In both cases, the products of the present invention have superior properties. In addition, when adding lead oxide with a lead oxidation rate of 90% or less, if the amount added is less than 10 degrees, it is no different from the conventional example, but if it exceeds 6 degrees, oxidation of the paste tends to proceed, which is not desirable. .
そのため、実施例は２５ ｗ１０添加を示した。Therefore, the example showed addition of 25w10.
なお、セパレータ繊維密度が０．１２未満では活物質の
脱落が起こりやすく、好ましくない。同様に、繊維密度
が０．２を越えると電池の内部抵抗が増加し７、またセ
パレータの電解液の吸液量が減少するため容量が短くな
った。Note that if the separator fiber density is less than 0.12, the active material tends to fall off, which is not preferable. Similarly, when the fiber density exceeds 0.2, the internal resistance of the battery increases7 and the amount of electrolyte absorbed by the separator decreases, resulting in a shortened capacity.
発明の効果。Effect of the invention.
本発明は、以上のように小形軽量で、急速充放電サイク
ル寿命、耐過充電特性に優れた密閉式鉛蓄電池を提供す
るものである。As described above, the present invention provides a sealed lead-acid battery that is small and lightweight, and has excellent rapid charge/discharge cycle life and overcharge resistance.
第１図は、正極への鉛丹化率の低い鉛酸化物を添加し、
正極格子合金Ｓｎ濃度の異なる電池の充放電サイクル寿
命の関係を示す図、第２図、第３図は定電流過充電時の
容量維持率を示す図である。
代理人の氏名 弁理士 粟 野 重 孝ほか１名第２図
期間（ｆｉｉＬ）Figure 1 shows that lead oxide with a low lead chloride rate is added to the positive electrode.
Figures 2 and 3 are diagrams showing the relationship between charge and discharge cycle life of batteries with different Sn concentrations in positive electrode lattice alloys, and are diagrams showing capacity retention rates during constant current overcharging. Name of agent: Patent attorney Shigetaka Awano and one other figure 2 period (fiiL)
Claims (3)
鉛を負極活物質とする負極と、マット状ガラス繊維から
なるセパレータとからなる密閉型鉛蓄電池において、正
極活物質に鉛丹化率９０％以下の鉛酸化物を含む鉛粉と
水、希硫酸を主成分として練合したペーストを用いると
ともに、正極格子体にＳｎを１．５％以上含む、Ｃａ−
Ｓｎ−Ｐｂ合金を用いることを特徴とする密閉型鉛蓄電
池。(1) In a sealed lead-acid battery consisting of a positive electrode using lead dioxide as the positive electrode active material, a negative electrode using sponge-like lead as the negative electrode active material, and a separator made of matte glass fiber, the percentage of lead in the positive electrode active material is A paste made by kneading lead powder containing 90% or less of lead oxide, water, and dilute sulfuric acid as the main components is used, and a Ca-
A sealed lead acid battery characterized by using a Sn-Pb alloy.
鉛粉重量に対し１０％以上５０％以下であることを特徴
とする特許請求の範囲第１項記載の密閉型鉛蓄電池。(2) A closed type according to claim 1, characterized in that the weight of red lead in the lead oxide with a red lead ratio of 90% or less is 10% or more and 50% or less based on the weight of the total lead powder. Lead acid battery.
を用い、その繊維密度が０．１２〜０．２ｇ／ｃｍ＾３
であることを特徴とする特許請求の範囲第１項記載の密
閉型鉛蓄電池。(3) A matte glass fiber separator is used as the separator, and its fiber density is 0.12 to 0.2 g/cm^3
The sealed lead-acid battery according to claim 1, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01021398A JP3087275B2 (en) | 1989-01-31 | 1989-01-31 | Sealed lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01021398A JP3087275B2 (en) | 1989-01-31 | 1989-01-31 | Sealed lead-acid battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02201871A true JPH02201871A (en) | 1990-08-10 |
| JP3087275B2 JP3087275B2 (en) | 2000-09-11 |
Family
ID=12053948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01021398A Expired - Lifetime JP3087275B2 (en) | 1989-01-31 | 1989-01-31 | Sealed lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3087275B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007123205A (en) * | 2005-10-31 | 2007-05-17 | Furukawa Battery Co Ltd:The | Control valve type lead-acid storage battery |
| JP2008311051A (en) * | 2007-06-14 | 2008-12-25 | Gs Yuasa Corporation:Kk | Lead storage battery |
-
1989
- 1989-01-31 JP JP01021398A patent/JP3087275B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007123205A (en) * | 2005-10-31 | 2007-05-17 | Furukawa Battery Co Ltd:The | Control valve type lead-acid storage battery |
| JP2008311051A (en) * | 2007-06-14 | 2008-12-25 | Gs Yuasa Corporation:Kk | Lead storage battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3087275B2 (en) | 2000-09-11 |
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