JP2553962B2 - Lead plate for lead battery - Google Patents
Lead plate for lead batteryInfo
- Publication number
- JP2553962B2 JP2553962B2 JP2335992A JP33599290A JP2553962B2 JP 2553962 B2 JP2553962 B2 JP 2553962B2 JP 2335992 A JP2335992 A JP 2335992A JP 33599290 A JP33599290 A JP 33599290A JP 2553962 B2 JP2553962 B2 JP 2553962B2
- Authority
- JP
- Japan
- Prior art keywords
- lead
- active material
- battery
- paste
- utilization rate
- 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
- Battery Electrode And Active Subsutance (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明はペースト式鉛電池用極板の改良に関するもの
である。TECHNICAL FIELD The present invention relates to an improvement of an electrode plate for a paste type lead battery.
従来の技術とその課題 鉛電池は長い歴史を持ち、商品化されて以来、単純な
材料構成と構造そして安定した性能からくる高い信頼性
の故に、現在まで蓄電池の主流を占めてきた。Conventional technology and its problems Lead batteries have a long history, and since commercialization, lead batteries have been the mainstream of storage batteries to date because of their high reliability due to their simple material structure, structure, and stable performance.
上記の安定した性能や信頼性は長期にわたる技術改良
の蓄積によるものであるが、近年、電気自動車のエネル
ギー源として、あるいは省エネルギーを指向して軽量化
しつつある自動車のLSI用電源として、重量効率、容積
効率の向上が強く望まれている。The above stable performance and reliability are due to the accumulation of technological improvements over a long period of time, but in recent years, as an energy source for electric vehicles, or as a power source for LSIs of automobiles that are becoming lighter in order to save energy, weight efficiency, There is a strong demand for improvement in volumetric efficiency.
鉛電池が単純な材料構成であるのは、その大半が密度
の大きい鉛からなっているからであり、したがって、鉛
電池の軽量化には鉛の減量が必要不可欠である。Lead batteries have a simple material structure because most of them are made of high-density lead. Therefore, lead weight reduction is essential for weight reduction of lead batteries.
金属鉛は主に集電体、負極活物質として、二酸化鉛な
どの鉛化合物は正極活物質として使用される。一方、電
池の容量取り出せる電気量によって決定され、この大き
さは活物質量が同じでも活物質利用率の大小によって異
なる。利用率の大きい活物質ほど単位重量当りの電気量
が大きいので同一内容の電池で比較した場合、活物質が
少量ですみ、ただちに電池の軽量化につながる。Lead metal is mainly used as a current collector and a negative electrode active material, and lead compounds such as lead dioxide are used as a positive electrode active material. On the other hand, the capacity of the battery is determined by the amount of electricity that can be taken out, and this magnitude varies depending on the size of the active material utilization rate even if the amount of active material is the same. Since the active material with a higher utilization rate has a larger amount of electricity per unit weight, when compared with batteries of the same content, a small amount of active material is required, which leads to immediate weight reduction of the battery.
従来、活物質の利用率を増大させるために、ペースト
中の硫酸鉛を増加させるか、あるいは導電性の耐食材料
例えば炭化チタン（TiC:特公昭48−6731）や窒化チタン
（TiN:比抵抗10-4〜10-5Ω・cm）の粉末をペースト中に
添加するなどの方法が試みられている。しかし、前者の
方法で利用率が大きくなるのは化成によって正極に生成
する二酸化鉛および負極に生成する金属鉛の分子容が硫
酸鉛のそれに比べて小さく、化成されたときその体積の
差が活物質内に空孔となって残り、この空孔が電解液を
速やかに拡散されて活物質の反応量を増加させるからで
ある。この方法は主に活物質と反応する電解液の側の利
用率向上を考慮したもので、一定体積において空孔の占
める割合を増加すれば活物質の占める割合が減少するの
で、ある程度以上の空孔量の増加は、逆に容量を減少さ
せ、また多孔度の増大は活物質の連結ネットを細くする
ため寿命が短くなるという問題があった。Conventionally, in order to increase the utilization rate of the active material, lead sulfate in the paste is increased, or a conductive corrosion-resistant material such as titanium carbide (TiC: Japanese Patent Publication No. 486731) or titanium nitride (TiN: specific resistance 10 Attempts have been made to add powder of -4 to 10 -5 Ω · cm) to the paste. However, the utilization rate increases with the former method because the molecular volume of lead dioxide produced in the positive electrode and the metallic lead produced in the negative electrode by chemical formation is smaller than that of lead sulfate, and the difference in volume when activated is active. This is because the pores remain in the substance, and the pores diffuse the electrolyte solution rapidly to increase the reaction amount of the active material. This method mainly considers the improvement of the utilization rate on the side of the electrolytic solution that reacts with the active material.If the proportion of pores in a given volume is increased, the proportion of active material is reduced, so that the empty space is above a certain level. On the contrary, an increase in the amount of pores causes a decrease in capacity, and an increase in porosity causes a thin connecting net of the active material, resulting in a problem that the life is shortened.
後者は活物質とのなじみが悪いことや耐酸性，耐酸化
性が完全でないため微量ではあるが使用中に溶解したチ
タンが負極上に析出し水素過電圧を低下させたい充電効
率を低下させるという問題があった。The latter is not compatible with the active material, and its acid resistance and oxidation resistance are not perfect, so a small amount of dissolved titanium deposits on the negative electrode during use, which reduces the hydrogen overvoltage. was there.
課題を解決するための手段 本発明は耐酸性、耐酸化性および高い導電性を有し、
しかも電池に対し有害な不純物を溶出しない鉛酸バリウ
ム（比抵抗:3×10-6Ω・cm）をペースト中に添加するこ
とにより活物質の物性を改良して利用率の向上を図るも
のである。Means for Solving the Problems The present invention has acid resistance, oxidation resistance and high conductivity,
Moreover, by adding barium leadate (specific resistance: 3 × 10 -6 Ωcm), which does not elute harmful impurities to the battery, to the paste, the physical properties of the active material are improved and the utilization rate is improved. is there.
実施例 以下本発明を一実施例に基づいて説明する。EXAMPLES The present invention will be described below based on examples.
（１）鉛粉（PbO含有量75％）10kgをとり、これに希硫
酸（比重:1.16/20℃）2.3を徐々に加えながら練合し
てペーストを作製した。このペーストを５等分してそれ
ぞれに鉛酸バリウムを０、0.5、１、２、3wt％添加し、
再度練合したのち厚さ1.4mmの自動車電池用格子に充填
した。この極板を正極として化成したのち、放電容量を
調べたところ下表の結果を得た。(1) 10 kg of lead powder (PbO content: 75%) was taken and kneaded while gradually adding dilute sulfuric acid (specific gravity: 1.16 / 20 ° C.) 2.3 to prepare a paste. Divide this paste into 5 equal parts and add 0, 0.5, 1, 2 and 3 wt% of barium leadate,
After kneading again, it was filled into a grid for automobile batteries having a thickness of 1.4 mm. After forming this electrode plate as a positive electrode, the discharge capacity was examined and the results shown in the table below were obtained.
（２）鉛粉10kgをとり、これに添加物として硫酸バリウ
ム0.5wt％、リグニン0.5wt％、カーボンブラック0.2wt
％を加え、混合したのち、希硫酸（比重:1.15/20℃）2.
0を徐々に加えながら練合してペーストを作製した。
このペーストを５等分してそれぞれに鉛酸バリウムを
０、0.1、0.2、0.3、0.5wt％加え再度練合し、厚さ1.4m
mの自動車電池用格子に充填した。この極板を負極とし
て化成したのち放電容量を調べたところ下表の結果を得
た。 (2) Take 10 kg of lead powder and add 0.5 wt% of barium sulfate, 0.5 wt% of lignin and 0.2 wt of carbon black as additives
%, And after mixing, dilute sulfuric acid (specific gravity: 1.15 / 20 ℃) 2.
A paste was prepared by kneading while gradually adding 0.
This paste is divided into 5 equal parts, and barium leadate is added to each at 0, 0.1, 0.2, 0.3, 0.5 wt% and kneaded again to obtain a thickness of 1.4 m.
m car battery grid was filled. When the discharge capacity was examined after forming the electrode plate as a negative electrode, the results shown in the table below were obtained.
上記第１表および第２表に示すように、本発明の鉛酸
バリウムを添加した極板はいずれも添加しなかったもの
に比べ明らかに利用率が優れていた。 As shown in Tables 1 and 2 above, the electrode plates to which the barium leadate of the present invention was added were obviously superior in utilization rate to those not added.
発明の効果 導電性添加物が鉛とバリウムから構成されたものなの
で、電解液に溶出した場合も電池に有害な影響を与える
ことがなく、活物質の導電性を高めて利用率を向上させ
るので鉛の減量を図ることができ電池の軽量化に大きく
貢献する。Advantageous Effects of the Invention Since the conductive additive is composed of lead and barium, it does not have a harmful effect on the battery even when it is dissolved in the electrolytic solution, so that the conductivity of the active material is increased and the utilization rate is improved. Lead can be reduced, which greatly contributes to weight reduction of batteries.
Claims (1)
有させたことを特徴とする鉛蓄電池用極板1. An electrode plate for a lead storage battery, characterized in that the active material contains barium leadate in an amount of 0.1 to 2% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2335992A JP2553962B2 (en) | 1990-11-29 | 1990-11-29 | Lead plate for lead battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2335992A JP2553962B2 (en) | 1990-11-29 | 1990-11-29 | Lead plate for lead battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04206268A JPH04206268A (en) | 1992-07-28 |
| JP2553962B2 true JP2553962B2 (en) | 1996-11-13 |
Family
ID=18294584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2335992A Expired - Fee Related JP2553962B2 (en) | 1990-11-29 | 1990-11-29 | Lead plate for lead battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2553962B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012074239A (en) * | 2010-09-28 | 2012-04-12 | Gs Yuasa Corp | Lead acid battery with clad type anode plate and method of manufacturing the same |
| EP3035433B1 (en) | 2014-12-18 | 2020-02-19 | GS Yuasa International Ltd. | Lead-acid battery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61225711A (en) * | 1985-03-30 | 1986-10-07 | 株式会社東芝 | Conducting paste |
-
1990
- 1990-11-29 JP JP2335992A patent/JP2553962B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04206268A (en) | 1992-07-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |