JPH01146254A - Seald lead-acid battery - Google Patents
Seald lead-acid batteryInfo
- Publication number
- JPH01146254A JPH01146254A JP62305005A JP30500587A JPH01146254A JP H01146254 A JPH01146254 A JP H01146254A JP 62305005 A JP62305005 A JP 62305005A JP 30500587 A JP30500587 A JP 30500587A JP H01146254 A JPH01146254 A JP H01146254A
- Authority
- JP
- Japan
- Prior art keywords
- active material
- grid
- tin powder
- acid battery
- lattice
- 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 14
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910000967 As alloy Inorganic materials 0.000 claims abstract description 5
- 239000007774 positive electrode material Substances 0.000 claims abstract description 5
- 239000011149 active material Substances 0.000 abstract description 10
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 230000006866 deterioration Effects 0.000 abstract description 4
- 238000006388 chemical passivation reaction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000007600 charging Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 239000006183 anode active material Substances 0.000 description 1
- 238000010280 constant potential charging Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01M4/14—Electrodes for lead-acid accumulators
-
- 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
-
- 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
- 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 Electrode Carriers And Collectors (AREA)
- Battery Electrode And Active Subsutance (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多方面に利用され、急
激に需要が増加している密閉型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 sealed lead-acid batteries, which are used in a wide variety of applications for portable equipment, and whose demand is rapidly increasing.
従来の技術
密閉型鉛電池に関してはこれまでに数多くの提案がある
。代表的なものとして、電解液量を極板群の孔容積、も
しくはそれ以下にしてフリー液無しの状態とし、充電末
期に陽極板から発生する酸素ガスを陰極板に吸収させる
ことにより、電解液の減少を抑制する方式が採用されて
いる。この密閉型鉛蓄電池は横転や倒置しても漏液せず
、かつ補水不要であるという特徴を持っている。Conventional Technology There have been many proposals regarding sealed lead-acid batteries. A typical example is to reduce the amount of electrolyte to the pore volume of the electrode plate group or less so that there is no free liquid, and to absorb the oxygen gas generated from the anode plate at the end of charging into the cathode plate. A method is adopted to suppress the decrease in This sealed lead-acid battery does not leak even if it is turned over or placed upside down, and it does not require water replenishment.
フ
発明が解決しよメとする問題点
上記従来の密閉型鉛蓄電池は、くり返し微少定電流過充
電を行った場合、容量劣化が起こり、サイクル寿命が低
下するという問題点を有していた。Problems to be Solved by the Invention The above-mentioned conventional sealed lead-acid batteries had a problem in that when repeated slight constant current overcharging was performed, capacity deterioration occurred and cycle life was shortened.
この問題点の原因として、微少定電流過充電による格子
の伸び、および格子と活物質の界面に不働態層が形成さ
れることによる格子と活物質との界面の密着性の低下が
考えられる。The causes of this problem are thought to be elongation of the lattice due to slight constant current overcharging and a decrease in adhesion between the lattice and the active material interface due to the formation of a passive layer at the interface between the lattice and the active material.
本発明は上記問題点を解決するもので、格子の伸びを抑
制し、格子と活物質との界面の密着性を向上させること
により、不働態層の形成を防ぎ、サイクル寿命を向上さ
せるものである。The present invention solves the above problems by suppressing the elongation of the lattice and improving the adhesion of the interface between the lattice and the active material, thereby preventing the formation of a passive layer and improving the cycle life. be.
問題点を解決するだめの手段
前記の目的を達成するために、本発明の密閉型鉛蓄電池
はスズ粉末を陽極活物質中に重量比で０．０１〜０．２
％添加した構成を有する。Means for Solving the Problems In order to achieve the above object, the sealed lead-acid battery of the present invention contains tin powder in the anode active material in a weight ratio of 0.01 to 0.2.
% added.
好ましくは、陽極格子としてＰｂ−５ｎ−Ａｓ合金（特
開昭５４−８７８２７号公報）を用い、かつスズ粉末を
０．０１〜Ｑ、２ｗｔ％添加した構成としたものである
。Preferably, a Pb-5n-As alloy (Japanese Unexamined Patent Publication No. 54-87827) is used as the anode grid, and tin powder is added in an amount of 0.01 to Q, 2 wt%.
作用
この構成によって、密閉型鉛蓄電池の格子の伸び、およ
び格子と活物質との界面でおこる不働態層の形成を抑制
し、格子界面での密着性を向上させることによシ微少定
電流過充電による容量劣化を抑制し、サイクル寿命の向
上を実現することができる。Effect: This structure suppresses the elongation of the lattice of a sealed lead-acid battery and the formation of a passive layer that occurs at the interface between the lattice and the active material, and improves the adhesion at the lattice interface, thereby suppressing slight constant current overload. Capacity deterioration due to charging can be suppressed and cycle life can be improved.
実施例
以下本発明の実施例について図を参照しながら説明する
。EXAMPLES Examples of the present invention will be described below with reference to the drawings.
正極板としてＰｂ−８ｎ−Ａｓ合金よりなる格子に、鉛
粉重量当たり０．００５〜Ｑ、３％のスズ粉末を練合時
に添加したペーストを充填し、極板を試作した。A positive electrode plate was prepared by filling a lattice made of a Pb-8n-As alloy with a paste in which tin powder of 0.005 to 3% by weight of lead powder was added during kneading.
これらの正極板１枚および従来処方の負極板１枚、ガラ
スマット１枚を組み合わせ、電解液として比重１．３４
（２０°Ｃ）の希硫酸を用いて、電圧８ｖ、容量１．１
人ｈ （１０時間率）の電池を試作した。なお本発明の
正極Ａはスズを０．０１％添加したもの、Ｂは同じく０
．１％、Ｃは同じ＜０．２％添加したものである。Combining one of these positive electrode plates, one conventionally formulated negative electrode plate, and one glass mat, the electrolyte has a specific gravity of 1.34.
(20°C) using dilute sulfuric acid, voltage 8V, capacity 1.1
A prototype battery with a 10-hour rate was manufactured. The positive electrode A of the present invention has 0.01% tin added, and the positive electrode B also has 0.01% tin added.
．． 1%, C with the same <0.2% addition.
第１図にこれらの電池Ａ〜Ｃと、従来電池のサイクル寿
命特性を示す。FIG. 1 shows the cycle life characteristics of these batteries A to C and a conventional battery.
なお、放電は１２Ωの定抵抗を用いて放電電圧６．８ｖ
までとし、充電は電流値４４０ ｍＡの定電圧充電を６
時間おこなった。In addition, the discharge voltage is 6.8V using a constant resistance of 12Ω.
Charging is performed using constant voltage charging with a current value of 440 mA for 600 mA.
It took time.
第２図のように、スズ粉末の添加量が０．０１％未満の
場合は効果がなく、０．２％以上になると内部短絡が起
こり寿命特性が劣化する。As shown in FIG. 2, if the amount of tin powder added is less than 0.01%, there is no effect, and if it is more than 0.2%, an internal short circuit occurs and the life characteristics deteriorate.
また、Ｓｎを含まない格子合金を用いた場合は効果がな
く、ムＳは格子合金の機械的強度を向上させるため添加
した。Further, when a lattice alloy containing no Sn was used, there was no effect, and S was added to improve the mechanical strength of the lattice alloy.
以上のように本実施例によれば、Ｐ ｂ −８ｎ−Ａｓ
合金よりなる格子に鉛粉重量当たり０．０１〜０．２％
のスズ粉末を添加したペーストを充填したことにより、
密閉型鉛蓄電池におけるサイクル寿命を大幅に向上させ
ることができる。As described above, according to this embodiment, P b -8n-As
0.01 to 0.2% by weight of lead powder in a lattice made of alloy
By filling the paste with tin powder added,
The cycle life of sealed lead-acid batteries can be significantly improved.
発明の効果
本発明は、密閉型鉛蓄電池の正極活物質中にスズ粉末を
添加するとともに、正極格子としてＰｂ−３ｎ−Ａｓ合
金を用いることにより、微少定電流過充電による格子の
伸び、および格子と活物質との界面でおこる不働態層の
形成を抑制し、格子界面での密着性を向上させて容量劣
化を抑制するものである。Effects of the Invention The present invention adds tin powder to the positive electrode active material of a sealed lead-acid battery and uses a Pb-3n-As alloy as the positive electrode grid, thereby preventing the elongation of the grid due to slight constant current overcharging and This suppresses the formation of a passive layer at the interface between the active material and the active material, improves adhesion at the lattice interface, and suppresses capacity deterioration.
このような効果をもたらす原因は明らかではないが、正
極格子中のスズと陽極活物質中のスズの相互作用により
、格子と活物質との界面の密着性が向上したと推定され
る。このことにより、密閉型鉛蓄電池のサイクル寿命の
向上とともに高信頼性の密閉型鉛蓄電池の提供が可能と
なる。Although the cause of this effect is not clear, it is presumed that the interaction between tin in the positive electrode lattice and tin in the positive electrode active material improves the adhesion at the interface between the lattice and the active material. This makes it possible to improve the cycle life of the sealed lead-acid battery and to provide a highly reliable sealed lead-acid battery.
第１図は本発明による試作電池と従来電池のサイクル寿
命を示す図、第２図はスズ粉末の添加量とサイクル寿命
の関係を示す図である。
本発明品人・・・・・・スズ粉末の添加量０．０１ｗｔ
％、本発明品Ｂ・・・・スズ粉末の添加量０．１ｗｔ％
、本発明品Ｃ・・・・・・スズ粉末の添加量ｏ、２ｗｔ
％。FIG. 1 is a diagram showing the cycle life of a prototype battery according to the present invention and a conventional battery, and FIG. 2 is a diagram showing the relationship between the amount of tin powder added and the cycle life. Inventor: Added amount of tin powder: 0.01wt
%, Invention product B...Additional amount of tin powder 0.1wt%
, Invention product C...Additional amount of tin powder o, 2wt
%.
Claims (2)
物質中に添加したことを特徴とする密閉型鉛蓄電池。(1) A sealed lead-acid battery characterized in that 0.01 to 0.2% by weight of tin powder is added to a positive electrode active material.
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) The sealed lead-acid battery according to claim 1, wherein a Pb-Sn-As alloy is used as the anode grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62305005A JP2553598B2 (en) | 1987-12-01 | 1987-12-01 | Sealed lead acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62305005A JP2553598B2 (en) | 1987-12-01 | 1987-12-01 | Sealed lead acid battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01146254A true JPH01146254A (en) | 1989-06-08 |
| JP2553598B2 JP2553598B2 (en) | 1996-11-13 |
Family
ID=17939935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62305005A Expired - Lifetime JP2553598B2 (en) | 1987-12-01 | 1987-12-01 | Sealed lead acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2553598B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53118742A (en) * | 1977-03-25 | 1978-10-17 | Japan Storage Battery Co Ltd | Maintenance free type lead storage battery |
| JPS5487827A (en) * | 1977-12-23 | 1979-07-12 | Matsushita Electric Ind Co Ltd | Grid for lead storage battery |
-
1987
- 1987-12-01 JP JP62305005A patent/JP2553598B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53118742A (en) * | 1977-03-25 | 1978-10-17 | Japan Storage Battery Co Ltd | Maintenance free type lead storage battery |
| JPS5487827A (en) * | 1977-12-23 | 1979-07-12 | Matsushita Electric Ind Co Ltd | Grid for lead storage battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2553598B2 (en) | 1996-11-13 |
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