JPS6319764A - Lead-acid battery - Google Patents

Lead-acid battery

Info

Publication number
JPS6319764A
JPS6319764A JP61164910A JP16491086A JPS6319764A JP S6319764 A JPS6319764 A JP S6319764A JP 61164910 A JP61164910 A JP 61164910A JP 16491086 A JP16491086 A JP 16491086A JP S6319764 A JPS6319764 A JP S6319764A
Authority
JP
Japan
Prior art keywords
powder
fine powder
lead
hydrophilic
fine
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
Application number
JP61164910A
Other languages
Japanese (ja)
Inventor
Seiji Kamiharashi
征治 上原子
Hiroyuki Jinbo
裕行 神保
Keiko Naruse
成瀬 圭子
Sadao Fukuda
貞夫 福田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP61164910A priority Critical patent/JPS6319764A/en
Publication of JPS6319764A publication Critical patent/JPS6319764A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

PURPOSE:To enhance the performance of a negative plate by adding fine hydrophilic powder and fine conductive powder to a negative plate. CONSTITUTION:Specific fine hydrophlic powder and fine conductive powder which covers conductivity decrease between particles and active material and a grid caused by addition of the hydrophilic powder are added to negative active material paste. The adding amount of the hydrophilic powder is 0.01-3.0% of the total active material by weight, and that of the conductive powder is 0.01-3.0%. As the hydrophilic powder, SiO2, Al2O3, TiO2, oxide of rare earth element, or these mixture is used. The conductive powder is carbon. Particle size of the fine hydrophilic powder and fine conductive powder is 200mum or less.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は鉛蓄電池、とくに負極板の特性向上のための添
加剤に関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to lead-acid batteries, particularly additives for improving the characteristics of negative electrode plates.

従来の技術 従来の鉛蓄電池用負極板は鉛あるいは鉛合金を鋳造ある
いはエキスバンド加工などにより集電体格子を作製し 
この集電体に、主成分が酸化鉛よりなる活物質原料を塗
着、乾燥し、ついで化成して極板としていた。
Conventional technology In the conventional negative electrode plate for lead-acid batteries, a current collector grid is made by casting or expanding lead or lead alloy.
An active material material whose main component is lead oxide was applied to this current collector, dried, and then chemically formed to form an electrode plate.

発明が解決しようとする問題点 この活物質原料は酸化鉛を主体とする鉛′粉と硫酸と水
を混合し練合したもので1機械的強度を改善するために
耐酸性の合成樹脂繊維°を添加したものである。
Problems to be Solved by the Invention This active material raw material is a mixture of lead powder mainly composed of lead oxide, sulfuric acid, and water. is added.

またこの他の添加剤として、硫酸バリウム、リグニンス
ルホン酸ナトリウムなどがあるのカである。
Other additives include barium sulfate and sodium ligninsulfonate.

しかしこれらの添加剤のみでは近年発展の著しい密閉形
の鉛蓄電池、すなわち電解液量が少なく制限された電池
に要求される負極板の親水性および吸液性の向上には不
充分であった。本発明はこのような問題を解決し、負極
板の特性向上を目的としたものである。
However, these additives alone have not been sufficient to improve the hydrophilicity and liquid absorption properties of the negative electrode plate required for sealed lead-acid batteries, which have been rapidly developed in recent years, that is, batteries in which the amount of electrolyte is small and limited. The present invention aims to solve these problems and improve the characteristics of a negative electrode plate.

問題点を解決するための手段 本発明は負極用活物質ペーストに所定の親水性の微粉末
の一定量と、この添加によって低下する粒子間および活
物質と格子間の導電性を補なうため導電性の微粉末の一
定量を添加し、負極板の親水性、吸液性の向上を図った
ことを特徴としたものである。
Means for Solving the Problems The present invention adds a certain amount of predetermined hydrophilic fine powder to the negative electrode active material paste, and in order to compensate for the decreased conductivity between particles and between the active material and the lattice due to the addition of this amount. It is characterized by adding a certain amount of conductive fine powder to improve the hydrophilicity and liquid absorption of the negative electrode plate.

作用 本発明による負極板は、電解液に対する親水性が向上す
るため、長期保存中に電解液中の水分が電槽壁を拡散減
少し、電解液量が所定量より減少した場合においても1
親水性に優れるためガラスマットより電解液の供給を受
け、充分に電解液を保持出来る能力を有するものである
Function The negative electrode plate according to the present invention has improved hydrophilicity with respect to the electrolyte, so even when the water in the electrolyte diffuses through the wall of the battery cell during long-term storage and the amount of the electrolyte decreases below a predetermined amount,
Because of its excellent hydrophilicity, it receives the electrolyte from the glass mat and has the ability to sufficiently hold the electrolyte.

このため、長期保存後の問題点の1つである負極板中の
電解液充填率の低下による容量の低下を抑制することが
出来る。
Therefore, it is possible to suppress a decrease in capacity due to a decrease in the electrolyte filling rate in the negative electrode plate, which is one of the problems after long-term storage.

実施例 以下、本発明の一実施例を説明する。従来のペースト処
方によって製作した負極板を人、および親水性の微粉末
として1次粒子の平均粒径が約16μmの5i02を人
の処方に対して重量比で0.6%および導電性の微粉末
として平均粒径が5μmのグラフ1イトカーボンを同じ
<0.3%添加して製作した負極板Bを用いて、電圧1
2v、容量2.oAhの電池人およびBを製作した。
EXAMPLE An example of the present invention will be described below. A negative electrode plate manufactured using a conventional paste formulation was used, and a hydrophilic fine powder containing 5i02 with an average primary particle diameter of approximately 16 μm was added at a weight ratio of 0.6% to the human formulation, and a conductive fine powder was added. Using negative electrode plate B manufactured by adding <0.3% of graphite carbon with an average particle size of 5 μm as a powder, a voltage of 1
2v, capacity 2. I made oAh's battery man and B.

この電池の製作条件は、負極板の添加剤を除いてはすべ
て同一条件で実施した。
This battery was manufactured under the same conditions except for the additive for the negative electrode plate.

製作した電池の初期容量および常温で2年間放置後の容
量の残存率と充電後の回復率の評価を行った。
The initial capacity of the produced battery, the remaining capacity after being left at room temperature for two years, and the recovery rate after charging were evaluated.

その結果を次表に示す。The results are shown in the table below.

(以下余 白) なお充放電条件は次の通υである。(Left below) The charging and discharging conditions are as follows.

(1)充電条件 定電圧充電;充電電流=800m人 設定電圧= 14.7 V 充電時間=6時間 (2)放電条件 放電電流=1.0人 カット電圧=10.5V 発明の効果 表に示したように本発明を密閉形鉛蓄電池に適用するこ
とにより、長期保存後の自己放電を抑制し、残存率を高
めるとともに充電後の回復率を大幅に向上させることが
出来るものである。
(1) Charging conditions Constant voltage charging; Charging current = 800 m person Setting voltage = 14.7 V Charging time = 6 hours (2) Discharging conditions Discharging current = 1.0 person Cut voltage = 10.5 V As shown in the effect table of the invention As described above, by applying the present invention to a sealed lead-acid battery, it is possible to suppress self-discharge after long-term storage, increase the survival rate, and significantly improve the recovery rate after charging.

Claims (4)

【特許請求の範囲】[Claims] (1)正極板、負極板、セパレータおよび電解液から構
成される鉛蓄電池であって、前記負極板には親水性の微
粉末および導電性の微粉末を添加したことを特徴とする
鉛蓄電池。
(1) A lead-acid battery comprising a positive electrode plate, a negative electrode plate, a separator, and an electrolytic solution, wherein a hydrophilic fine powder and a conductive fine powder are added to the negative electrode plate.
(2)親水性の微粉末の添加量が重量比で活物質総量の
0.01〜3.0%であり、導電性の微粉末の添加量が
0.01〜3.0%である特許請求の範囲第1項記載の
鉛蓄電池。
(2) A patent in which the amount of hydrophilic fine powder added is 0.01 to 3.0% by weight of the total amount of active materials, and the amount of conductive fine powder added is 0.01 to 3.0%. A lead-acid battery according to claim 1.
(3)親水性の微粉末がSiO_2、Al_2O_3、
TiO_2、希土類元素の酸化物またはこれらの混合物
であり、導電性の微粉末がカーボンである特許請求の範
囲第1項記載の鉛蓄電池。
(3) Hydrophilic fine powder is SiO_2, Al_2O_3,
The lead-acid battery according to claim 1, wherein the conductive fine powder is carbon, which is TiO_2, an oxide of a rare earth element, or a mixture thereof.
(4)親水性の微粉末の粒径が200μm以下、導電性
の微粉末の粒径が200μm以下である特許請求の範囲
第1項記載の鉛蓄電池。
(4) The lead-acid battery according to claim 1, wherein the hydrophilic fine powder has a particle size of 200 μm or less, and the conductive fine powder has a particle size of 200 μm or less.
JP61164910A 1986-07-14 1986-07-14 Lead-acid battery Pending JPS6319764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61164910A JPS6319764A (en) 1986-07-14 1986-07-14 Lead-acid battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61164910A JPS6319764A (en) 1986-07-14 1986-07-14 Lead-acid battery

Publications (1)

Publication Number Publication Date
JPS6319764A true JPS6319764A (en) 1988-01-27

Family

ID=15802181

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61164910A Pending JPS6319764A (en) 1986-07-14 1986-07-14 Lead-acid battery

Country Status (1)

Country Link
JP (1) JPS6319764A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101841032A (en) * 2010-05-27 2010-09-22 江苏华富控股集团有限公司 Method for preparing negative plate of lead storage battery
CN104743644A (en) * 2013-12-27 2015-07-01 日本华尔卡工业株式会社 Electrode film for water treatment and its preparation method and use

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5569970A (en) * 1978-11-22 1980-05-27 Japan Storage Battery Co Ltd Enclosed type lead storage battery
JPS5828179A (en) * 1981-08-13 1983-02-19 Yuasa Battery Co Ltd Lead storage battery

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5569970A (en) * 1978-11-22 1980-05-27 Japan Storage Battery Co Ltd Enclosed type lead storage battery
JPS5828179A (en) * 1981-08-13 1983-02-19 Yuasa Battery Co Ltd Lead storage battery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101841032A (en) * 2010-05-27 2010-09-22 江苏华富控股集团有限公司 Method for preparing negative plate of lead storage battery
CN104743644A (en) * 2013-12-27 2015-07-01 日本华尔卡工业株式会社 Electrode film for water treatment and its preparation method and use

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