JP3694218B2 - Sealed lead acid battery - Google Patents
Sealed lead acid battery Download PDFInfo
- Publication number
- JP3694218B2 JP3694218B2 JP2000158557A JP2000158557A JP3694218B2 JP 3694218 B2 JP3694218 B2 JP 3694218B2 JP 2000158557 A JP2000158557 A JP 2000158557A JP 2000158557 A JP2000158557 A JP 2000158557A JP 3694218 B2 JP3694218 B2 JP 3694218B2
- Authority
- JP
- Japan
- Prior art keywords
- acid
- lead
- sealed lead
- alkali metal
- acid 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.)
- Expired - Fee Related
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
- Secondary Cells (AREA)
Description
【０００１】
【発明の属する技術分野】
本発明は、無停電電源等に用いられる密閉形鉛畜電池に関する。
【０００２】
【従来の技術】
近年、コンピュータ等の電子機器に搭載される無停電電源装置として鉛蓄電池が使用されている。特に、内部に遊離の電解液が殆ど存在しないように電解液量を制限した密閉形鉛蓄電池は、設置方向の自由度が高く、さらに電解液の補充等の操作が不要であることから広く実用化されている。
【０００３】
しかしながら、前記密閉形鉛蓄電池は前述したように電解液量が制限されるため、従来の遊離の電解液を含有する鉛蓄電池に比べて特に高率放電特性の点で劣るという問題があった。これは、高率放電時には主として極板近傍に存在する硫酸により放電が進行し、極板間に配置したセパレータ内に含浸された硫酸が殆ど放電に寄与しないためである。
【０００４】
このようなことから、特開昭５７−８０６７０号公報には内部に遊離の電解液が殆ど存在しない形態の蓄電池のエネルギー効率を向上させる手段として内部にケイ素またはフッ素を含む界面活性剤を含有させることが開示されている。この蓄電池においては、極板表面と電解液との接触状態が界面活性剤により向上されるため、極板表面への硫酸の移動が容易になり、放電反応を円滑に進行させることが可能になる。
【０００５】
しかしながら、前記公報に記載されたように界面活性剤をただ単に電解液中に単独で存在させるだけでは高率放電特性の向上効果の持続性に問題があることが判明した。これは、充放電反応によって電解液中に含有される界面活性剤が正極および負極の活物質中に取り込まれることにより高率放電特性の改善が持続しないものと考えられる。
【０００６】
【発明が解決しようとする課題】
本発明は、高率放電特性を改善するとともに、その持続性の高い密閉形鉛蓄電池を提供しようとするものである。
【０００７】
【課題を解決するための手段】
本発明に係わる密閉形鉛蓄電池は、二酸化鉛を活物質として含む正極、鉛を活物質として含む負極および電解液を具備した密閉形鉛蓄電池であって、
前記電解液は、希硫酸、ＣnＦ 2n+1 ＳＯ3Ｍで表されるパーフルオロアルキルスルホン酸のアルカリ金属塩およびリン酸ナトリウムを含有することを特徴とするものである。
【０００９】
【発明の実施の形態】
以下、本発明に係わる密閉形鉛蓄電池を詳細に説明する。
【００１０】
この密閉形鉛蓄電池は、二酸化鉛を活物質として含む正極、鉛を活物質として含む負極および希硫酸およびＣnＦ 2n+1 ＳＯ3Ｍで表されるパーフルオロアルキルスルホン酸のアルカリ金属塩を含有する電解液を具備した構造を有する。
【００１１】
前記ＣnＦ 2n+1 ＳＯ3Ｍで表されるパーフルオロアルキルスルホン酸のアルカリ金属塩は、パーフルオロアルキルスルホン酸リチウム塩（Ｃ8Ｆ17ＳＯ3Ｌｉ）またはパーフルオロアルキルスルホン酸ナトリウム塩（Ｃ8Ｆ17ＳＯ3Ｎａ）が好ましい。
【００１２】
前記パーフルオロアルキルスルホン酸のアルカリ金属塩は、電解液中に１．０〜１．５重量％含有することが好ましい。前記アルカリ金属塩の含有量を１．０重量％未満にすると、高率放電特性の向上を十分に達成することが困難になる。一方、前記アルカリ金属塩の含有量が１．５重量％を超えると高率放電特性が低下する恐れがある。より好ましい前記パーフルオロアルキルスルホン酸のアルカリ金属塩の含有量は１．０〜１．２重量％である。
【００１３】
前記電解液中は、さらにリン酸ナトリウムを含有することを許容する。このリン酸ナトリウムは、前記電解液中に１．５〜２．０重量％含有することが好ましい。前記リン酸ナトリウムの含有量を１．５重量％未満にすると、高率放電特性の向上を十分に達成することが困難になる。前記リン酸ナトリウムの含有量が２．０重量％を超えると高率放電特性が低下するのみならず、サイクル寿命特性が低下する恐れがある。より好ましい前記リン酸ナトリウムの含有量は１．５〜１．８重量％である。
【００１４】
特に、前記リン酸ナトリウムをさらに含有する電解液の場合には前記ＣnＦ 2n+1 ＳＯ3Ｍで表されるパーフルオロアルキルスルホン酸のアルカリ金属塩および前記リン酸ナトリウムの含有量をそれぞれ１．０〜１．５重量％、１．５〜２．０重量％にすることが好適である。
【００１５】
次に、本発明に係わる別の密閉形鉛蓄電池を詳細に説明する。
【００１６】
この密閉形鉛蓄電池は、二酸化鉛を活物質として含む正極、鉛を活物質として含む負極および希硫酸およびパーフルオロアルキルスルホン酸アンモニウム塩（Ｃ8Ｆ17ＳＯ3ＮＨ4）を含有する電解液を具備した構造を有する。
【００１７】
前記パーフルオロアルキルスルホン酸アンモニウム塩は、前記電解液中に０．５〜１．５重量％含有することが好ましい。前記アンモニウム塩の含有量を０．５重量％未満にすると、高率放電特性の向上を十分に達成することが困難になる。一方、前記アンモニウム塩の含有量が１．５重量％を超えると高率放電特性が低下する恐れがある。より好ましい前記パーフルオロアルキルスルホン酸アンモニウム塩の含有量は０．５〜１．０重量％である。
【００１８】
以上説明した本発明に係わる密閉形鉛蓄電池は、電解液として希硫酸およびＣnＦ 2n+1 ＳＯ3Ｍで表されるパーフルオロアルキルスルホン酸のアルカリ金属塩を含有するものを用いることによって、長期間にわたって高率放電特性向上を持続することができる。
【００１９】
特に、前記効果はパーフルオロアルキルスルホン酸のアルカリ金属塩としてパーフルオロアルキルスルホン酸リチウム塩（Ｃ8Ｆ17ＳＯ3Ｌｉ）またはパーフルオロアルキルスルホン酸ナトリウム塩（Ｃ8Ｆ17ＳＯ3Ｎａ）を選択した場合に顕著であり、さらにアルカリ金属塩の含有量を１．０〜１．５重量％に規定した場合に顕著である。
【００２０】
また、電解液中にさらにリン酸ナトリウムを含有させることによって、より一層長期間にわたって高率放電特性向上を持続し得る密閉形鉛蓄電池を実現できる。このようなリン酸ナトリウムの作用・効果は不明であるが、特に充電時に負極活物質である鉛の結晶成長状態が変化することにより負極活物質中に取り込まれるＣnＦ 2n+1 ＳＯ3Ｍで表されるパーフルオロアルキルスルホン酸のアルカリ金属塩の量を抑制することができることによるものと推定される。
【００２１】
前記リン酸ナトリウムをさらに含有する電解液において、前記ＣnＦ 2n+1 ＳＯ3Ｍで表されるパーフルオロアルキルスルホン酸のアルカリ金属塩および前記リン酸ナトリウムの含有量をそれぞれ１．０〜１．５重量％、１．５〜２．０重量％にすることによって、さらに一層長期間にわたって高率放電特性向上を持続し得る密閉形鉛蓄電池を実現できる。
【００２２】
本発明に係わる別の密閉形鉛蓄電池は、電解液として希硫酸およびパーフルオロアルキルスルホン酸アンモニウム塩（Ｃ8Ｆ17ＳＯ3ＮＨ4）を含有するものを用いることによって、長期間にわたって高率放電特性向上を持続することができる。
【００２３】
【実施例】
以下、本発明の好ましい実施例を詳細に説明する。
【００２４】
（実施例１〜５および参照例１〜５）
鉛−カルシウム−錫合金からなる格子体に二酸化鉛を水および希硫酸で混練したペースト状活物質を塗着し、熟成乾燥することにより正極板を作製した。
【００２５】
また、鉛−カルシウム−錫合金からなる格子体に海綿状鉛を水および希硫酸で混練したペースト状活物質を塗着し、熟成乾燥することにより負極板を作製した。
【００２６】
複数の前記正極板および負極板の間に微細なガラス繊維からなるセパレータそれぞれ介在させて組み立て、この極板群を容器内に収納するとともに電解液を前記容器内に遊離状態のものが殆ど存在しないように収容した後、前記容器を蓋体等で密閉することにより公称電圧１２Ｖ、定格容量５Ａｈの１０種の密閉形鉛蓄電池を製造した。
【００２７】
なお、前記電解液は比重１．３２の希硫酸と下記表１に示すパーフルオロオクタンスルホン酸塩（またはパーフルオロオクタンスルホン酸塩およびリン酸ナトリウム）とからなる組成のものを用い、かつ前記極板群に含浸保持できる量に設定した。
【００２８】
（比較例１）
電解液として比重１．３２の希硫酸からなるものを用いた以外、実施例１と同様な方法により公称電圧１２Ｖ、定格容量５Ａｈの密閉形鉛蓄電池を製造した。
【００２９】
得られた実施例１〜５、参照例１〜５および比較例１の密閉形鉛蓄電池について、３ＣＡ（１５Ａ）の高率放電電流での容量試験を行なった。その結果を下記表１に併記する。なお、実施例１〜５および参照例１〜５の鉛蓄電池における高率放電容量は比較例１の放電容量（１００）に対する相対値で示した。
【００３０】
また、実施例１〜５、参照例１〜５および比較例１の密閉形鉛蓄電池について、２５℃中にて１３．８Ｖで定電圧充電し、３ＣＡ（１５Ａ）で電池電圧が９．６Ｖになるまで放電する充放電を繰り返し、２００サイクルの時点における各蓄電池の３ＣＡ（１５Ａ）の高率放電容量を調べた。その結果を下記表１に併記する。なお、実施例１〜５、参照例１〜５および比較例１の鉛蓄電池における２００サイクル後の高率放電容量は１サイクル目の比較例１の放電容量（１００）に対する相対値で示した。
【００３１】
【表１】
前記表１から明らかなように電解液中にパーフルオロオクタンスルホン酸のリチウム塩およびナトリウム塩を含有する実施例１〜５および参照例１〜５の鉛蓄電池は、パーフルオロオクタンスルホン酸のアルカリ金属塩を含有しない電解液を用いた比較例１の鉛蓄電池に比べて優れた高率放電特性を有することがわかる。
【００３３】
特に、電解液中にパーフルオロオクタンスルホン酸のリチウム塩に加えてリン酸ナトリウムを含有する実施例１の鉛蓄電池は、電解液中にパーフルオロオクタンスルホン酸のリチウム塩のみを含有させた参照例２の鉛蓄電池に比べて優れた高率放電特性を有することがわかる。なお、同様な関係にある実施例２と参照例３の鉛蓄電池、実施例３〜５と参照例４の鉛蓄電池から、電解液中にパーフルオロオクタンスルホン酸のアルカリ金属塩に加えてリン酸ナトリウムを含有させることによって、高率放電特性をより向上できることがわかる。
【００３４】
また、前記表１から明らかなように電解液中にパーフルオロオクタンスルホン酸のリチウム塩およびナトリウム塩を含有する実施例１〜５および参照例１〜５の鉛蓄電池は、パーフルオロオクタンスルホン酸のアルカリ金属塩を含有しない電解液を用いた比較例１の鉛蓄電池に比べて充放電サイクルを経た後のおいても高率放電特性の改善効果を持続できることがわかる。
【００３５】
特に、電解液中にパーフルオロオクタンスルホン酸のリチウム塩やナトリウム塩に加えてリン酸ナトリウムを含有する実施例１〜５の鉛蓄電池は、充放電サイクルを経た後のおいても高率放電特性の改善効果をより良好に持続できることがわかる。
【００３６】
【発明の効果】
以上説明したように本発明によれば、電解液量が制限された密閉形鉛蓄電池において高率放電特性を向上できるとともに、充放電サイクルを経た後でも持続的にこの高率放電特性の向上効果を得ることができる等顕著な効果を奏する。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sealed lead-acid battery used for an uninterruptible power supply or the like.
[0002]
[Prior art]
In recent years, lead-acid batteries have been used as uninterruptible power supplies mounted on electronic devices such as computers. In particular, sealed lead-acid batteries that limit the amount of electrolyte so that there is almost no free electrolyte inside are highly practical because they have a high degree of freedom in installation direction and do not require replenishment of electrolyte. It has become.
[0003]
However, since the amount of the electrolytic solution is limited as described above, the sealed lead-acid battery has a problem that it is inferior particularly in terms of high rate discharge characteristics as compared with a conventional lead-acid battery containing a free electrolytic solution. This is because during high-rate discharge, discharge proceeds mainly due to sulfuric acid present in the vicinity of the electrode plates, and sulfuric acid impregnated in the separator disposed between the electrode plates hardly contributes to the discharge.
[0004]
For this reason, JP-A-57-80670 contains a surfactant containing silicon or fluorine as a means for improving the energy efficiency of a storage battery having almost no free electrolyte inside. It is disclosed. In this storage battery, the contact state between the electrode plate surface and the electrolyte is improved by the surfactant, so that the sulfuric acid can easily move to the electrode plate surface, and the discharge reaction can proceed smoothly. .
[0005]
However, as described in the above publication, it has been found that there is a problem in the sustainability of the improvement effect of the high rate discharge characteristics when the surfactant is simply present alone in the electrolytic solution. This is considered that the improvement of the high-rate discharge characteristics is not continued by incorporating the surfactant contained in the electrolytic solution into the active material of the positive electrode and the negative electrode by the charge / discharge reaction.
[0006]
[Problems to be solved by the invention]
The present invention is intended to provide a sealed lead-acid battery that improves high-rate discharge characteristics and has high sustainability.
[0007]
[Means for Solving the Problems]
A sealed lead-acid battery according to the present invention is a sealed lead-acid battery comprising a positive electrode containing lead dioxide as an active material, a negative electrode containing lead as an active material, and an electrolyte solution,
The electrolytic solution contains dilute sulfuric acid, an alkali metal salt of perfluoroalkylsulfonic acid represented by C n F 2n + 1 SO 3 M, and sodium phosphate.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the sealed lead-acid battery according to the present invention will be described in detail.
[0010]
The sealed lead-acid batteries, an alkali metal salt of a perfluoroalkylsulfonic acid represented by the negative electrode and diluted sulfuric acid and C n F 2n + 1 SO 3 M comprises a positive electrode containing lead dioxide as the active material, lead as active material It has a structure equipped with an electrolytic solution containing.
[0011]
The alkali metal salt of perfluoroalkylsulfonic acid represented by C n F 2n + 1 SO 3 M is perfluoroalkylsulfonic acid lithium salt (C 8 F 17 SO 3 Li) or perfluoroalkylsulfonic acid sodium salt ( C 8 F 17 SO 3 Na) is preferred.
[0012]
The alkali metal salt of perfluoroalkylsulfonic acid is preferably contained in an amount of 1.0 to 1.5% by weight in the electrolytic solution. When the content of the alkali metal salt is less than 1.0% by weight, it is difficult to sufficiently achieve high rate discharge characteristics. On the other hand, if the content of the alkali metal salt exceeds 1.5% by weight, the high rate discharge characteristics may be deteriorated. The content of the alkali metal salt of perfluoroalkylsulfonic acid is more preferably 1.0 to 1.2% by weight.
[0013]
The electrolyte solution further contains sodium phosphate. This sodium phosphate is preferably contained in the electrolytic solution in an amount of 1.5 to 2.0% by weight. When the content of the sodium phosphate is less than 1.5% by weight, it is difficult to sufficiently achieve high rate discharge characteristics. When the content of the sodium phosphate exceeds 2.0% by weight, not only the high-rate discharge characteristics but also the cycle life characteristics may be deteriorated. The content of the sodium phosphate is more preferably 1.5 to 1.8% by weight.
[0014]
In particular, in the case of the electrolytic solution further containing sodium phosphate, the content of the alkali metal salt of perfluoroalkylsulfonic acid represented by C n F 2n + 1 SO 3 M and the content of sodium phosphate is 1 respectively. It is suitable to make it 0.0 to 1.5 weight% and 1.5 to 2.0 weight%.
[0015]
Next, another sealed lead-acid battery according to the present invention will be described in detail.
[0016]
This sealed lead-acid battery has a positive electrode containing lead dioxide as an active material, a negative electrode containing lead as an active material, and an electrolyte containing dilute sulfuric acid and ammonium perfluoroalkylsulfonate (C 8 F 17 SO 3 NH 4 ). It has a built-in structure.
[0017]
The perfluoroalkylsulfonic acid ammonium salt is preferably contained in the electrolytic solution in an amount of 0.5 to 1.5% by weight. When the content of the ammonium salt is less than 0.5% by weight, it is difficult to sufficiently achieve high rate discharge characteristics. On the other hand, if the content of the ammonium salt exceeds 1.5% by weight, the high rate discharge characteristics may be deteriorated. The content of the ammonium perfluoroalkylsulfonic acid salt is more preferably 0.5 to 1.0% by weight.
[0018]
By using those described sealed lead acid battery according to the present invention that is containing an alkali metal salt of a perfluoroalkylsulfonic acid represented by dilute sulfuric acid and C n F 2n + 1 SO 3 M as the electrolyte solution above, Improvement of high rate discharge characteristics can be maintained over a long period of time.
[0019]
In particular, the effect is that perfluoroalkyl sulfonic acid lithium salt (C 8 F 17 SO 3 Li) or perfluoroalkyl sulfonic acid sodium salt (C 8 F 17 SO 3 Na) is selected as the alkali metal salt of perfluoroalkyl sulfonic acid. This is remarkable when the content of the alkali metal salt is specified to be 1.0 to 1.5% by weight.
[0020]
Further, by further containing sodium phosphate in the electrolytic solution, it is possible to realize a sealed lead-acid battery that can continue to improve the high-rate discharge characteristics for a longer period of time. The action and effect of such sodium phosphate is unknown, but C n F 2n + 1 SO 3 M incorporated into the negative electrode active material by changing the crystal growth state of lead, which is the negative electrode active material, during charging. It is presumed that the amount of the alkali metal salt of perfluoroalkylsulfonic acid represented by
[0021]
In the electrolyte solution further containing sodium phosphate, the content of the alkali metal salt of perfluoroalkylsulfonic acid represented by C n F 2n + 1 SO 3 M and sodium phosphate is 1.0 to 1, respectively. By setting the content to 0.5 wt% and 1.5 to 2.0 wt%, it is possible to realize a sealed lead-acid battery that can continue to improve the high-rate discharge characteristics for an even longer period of time.
[0022]
Another sealed lead-acid battery according to the present invention uses a material containing dilute sulfuric acid and perfluoroalkylsulfonic acid ammonium salt (C 8 F 17 SO 3 NH 4 ) as an electrolytic solution, thereby enabling high rate discharge over a long period of time. The characteristic improvement can be sustained.
[0023]
【Example】
Hereinafter, preferred embodiments of the present invention will be described in detail.
[0024]
( Examples 1-5 and Reference Examples 1-5 )
A positive electrode plate was prepared by applying a paste-like active material obtained by kneading lead dioxide with water and dilute sulfuric acid to a lattice body made of a lead-calcium-tin alloy, and aging and drying.
[0025]
Also, a paste-like active material obtained by kneading sponge-like lead with water and dilute sulfuric acid was applied to a lattice body made of a lead-calcium-tin alloy, and then aged and dried to prepare a negative electrode plate.
[0026]
Assembled by interposing a separator made of fine glass fibers between the positive electrode plate and the negative electrode plate, and storing the electrode plate group in the container so that there is almost no electrolyte in the container. After accommodating, 10 types of sealed lead-acid batteries having a nominal voltage of 12 V and a rated capacity of 5 Ah were manufactured by sealing the container with a lid or the like.
[0027]
Incidentally, the electrolyte is used as a composition consisting of a path over perfluorooctane sulfonate shown in dilute sulfuric acid and the following Table 1 specific gravity 1.32 (or path over perfluorooctane sulfonate and sodium phosphate), and The amount was set so that the electrode plate group could be impregnated and retained.
[0028]
(Comparative Example 1)
A sealed lead-acid battery having a nominal voltage of 12 V and a rated capacity of 5 Ah was produced in the same manner as in Example 1 except that the electrolyte was made of dilute sulfuric acid having a specific gravity of 1.32.
[0029]
The obtained lead-acid batteries of Examples 1 to 5, Reference Examples 1 to 5 and Comparative Example 1 were subjected to a capacity test at a high rate discharge current of 3CA (15A). The results are also shown in Table 1 below. In addition, the high rate discharge capacity in the lead storage batteries of Examples 1 to 5 and Reference Examples 1 to 5 is shown as a relative value with respect to the discharge capacity (100) of Comparative Example 1.
[0030]
In addition, the sealed lead-acid batteries of Examples 1 to 5, Reference Examples 1 to 5 and Comparative Example 1 were charged at a constant voltage of 13.8 V at 25 ° C., and the battery voltage was 9.6 V at 3 CA (15 A). The charging / discharging which discharged until it became it was repeated, and the high rate discharge capacity of 3CA (15A) of each storage battery in the time of 200 cycles was investigated. The results are also shown in Table 1 below. In addition, the high rate discharge capacity after 200 cycles in the lead storage batteries of Examples 1 to 5, Reference Examples 1 to 5 and Comparative Example 1 is shown as a relative value to the discharge capacity (100) of Comparative Example 1 in the first cycle.
[0031]
[Table 1]
As apparent from Table 1, the lead acid batteries of Examples 1 to 5 and Reference Examples 1 to 5 containing lithium salt and sodium salt of perfluorooctane sulfonic acid in the electrolytic solution are alkali metals of perfluorooctane sulfonic acid. It turns out that it has the high-rate discharge characteristic excellent compared with the lead acid battery of the comparative example 1 using the electrolyte solution which does not contain salt.
[0033]
In particular, the lead acid battery of Example 1 containing sodium phosphate in addition to the lithium salt of perfluorooctane sulfonic acid in the electrolytic solution is a reference example in which only the lithium salt of perfluorooctane sulfonic acid is contained in the electrolytic solution . It turns out that it has the high-rate discharge characteristic outstanding compared with 2 lead acid battery. In addition, in addition to the alkali metal salt of perfluorooctane sulfonic acid in the electrolytic solution from the lead acid batteries of Example 2 and Reference Example 3 and the lead acid batteries of Examples 3 to 5 and Reference Example 4 having the same relationship, phosphoric acid It can be seen that high rate discharge characteristics can be further improved by containing sodium.
[0034]
Moreover, as is clear from Table 1, the lead acid batteries of Examples 1 to 5 and Reference Examples 1 to 5 containing perfluorooctane sulfonic acid lithium salt and sodium salt in the electrolytic solution are perfluorooctane sulfonic acid. It can be seen that the improvement effect of the high rate discharge characteristics can be maintained even after the charge / discharge cycle as compared with the lead storage battery of Comparative Example 1 using the electrolyte solution containing no alkali metal salt.
[0035]
In particular, the lead acid batteries of Examples 1 to 5 containing sodium phosphate in addition to lithium salt or sodium salt of perfluorooctane sulfonic acid in the electrolyte solution have high rate discharge characteristics even after undergoing a charge / discharge cycle. It can be seen that the improvement effect can be sustained more favorably.
[0036]
【The invention's effect】
As described above, according to the present invention, high-rate discharge characteristics can be improved in a sealed lead-acid battery with a limited amount of electrolyte, and the high-rate discharge characteristics can be continuously improved even after a charge / discharge cycle. It is possible to obtain a remarkable effect.
Claims (4)
前記電解液は、希硫酸、ＣnＦ 2n+1 ＳＯ3Ｍで表されるパーフルオロアルキルスルホン酸のアルカリ金属塩およびリン酸ナトリウムを含有することを特徴とする密閉形鉛蓄電池。A sealed lead-acid battery comprising a positive electrode containing lead dioxide as an active material, a negative electrode containing lead as an active material, and an electrolyte,
The electrolyte, sealed lead-acid battery, characterized by containing dilute sulfuric acid, alkali metal salts and sodium phosphate perfluoroalkylsulfonic acid represented by C n F 2n + 1 SO 3 M.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000158557A JP3694218B2 (en) | 2000-05-29 | 2000-05-29 | Sealed lead acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000158557A JP3694218B2 (en) | 2000-05-29 | 2000-05-29 | Sealed lead acid battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001338675A JP2001338675A (en) | 2001-12-07 |
| JP3694218B2 true JP3694218B2 (en) | 2005-09-14 |
Family
ID=18663017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000158557A Expired - Fee Related JP3694218B2 (en) | 2000-05-29 | 2000-05-29 | Sealed lead acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3694218B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101091282B (en) * | 2005-09-27 | 2014-09-03 | 古河电池株式会社 | Lead storage battery and process for producing the same |
| JP2008152973A (en) * | 2006-12-14 | 2008-07-03 | Osaka Univ | Electrolytic solution for lead storage battery, anode for lead storage battery, lead storage battery equipped with electrolytic solution and/or anode, and additive for lead acid battery |
| CN111600078A (en) * | 2020-05-08 | 2020-08-28 | 衡阳瑞达电源有限公司 | Lead-acid storage battery electrolyte capable of preventing anode from being corroded and preparation method thereof |
-
2000
- 2000-05-29 JP JP2000158557A patent/JP3694218B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001338675A (en) | 2001-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3936157B2 (en) | Manufacturing method for sealed lead-acid batteries | |
| JP3694218B2 (en) | Sealed lead acid battery | |
| JP5531746B2 (en) | Lead acid battery | |
| JP2001043849A (en) | Sealed lead-acid battery | |
| JP2004327299A (en) | Sealed lead-acid storage battery | |
| JP3835093B2 (en) | Sealed lead acid battery | |
| JP3216450B2 (en) | Electrolyte for lead-acid batteries | |
| JPH0750616B2 (en) | Lead acid battery | |
| JP4411860B2 (en) | Storage battery | |
| JP2596273B2 (en) | Anode plate for lead-acid battery | |
| JP2007213896A (en) | Lead-acid storage battery | |
| JP4742424B2 (en) | Control valve type lead acid battery | |
| JP2001085046A (en) | Sealed lead-acid battery | |
| JP3648752B2 (en) | Lead storage battery charge control method | |
| JP2000058105A (en) | Lead-acid battery | |
| JP3951285B2 (en) | Control valve type lead acid battery | |
| JP2006202584A (en) | Lead-acid battery and its manufacturing method | |
| JP2001185227A (en) | Maintenance method of lead-acid battery | |
| JP2001160422A (en) | Charging control method of lead storage battery | |
| JP2002110220A (en) | Lead-acid battery | |
| JP2964555B2 (en) | Battery storage method for lead-acid batteries | |
| JPH06140042A (en) | Sealed lead-acid battery | |
| JP3637797B2 (en) | Lead acid battery | |
| JP2002270215A (en) | Control valve type lead acid storage battery | |
| JP2008034286A (en) | Closed lead battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20040827 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20040914 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20041110 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20050419 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20050527 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20050621 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20050623 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090701 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100701 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110701 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110701 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120701 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120701 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130701 Year of fee payment: 8 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |