CN101399334B - 铅酸蓄电池极群制作工艺 - Google Patents

铅酸蓄电池极群制作工艺 Download PDF

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CN101399334B
CN101399334B CN2007101333098A CN200710133309A CN101399334B CN 101399334 B CN101399334 B CN 101399334B CN 2007101333098 A CN2007101333098 A CN 2007101333098A CN 200710133309 A CN200710133309 A CN 200710133309A CN 101399334 B CN101399334 B CN 101399334B
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CN101399334A (zh
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陆亚山
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Shuangdeng Group Co Ltd
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JIANGSU SHUANGDE GROUP CO Ltd
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Abstract

本发明公开一种铅酸蓄电池极群制作工艺,其特点是极群中正极板的板栅由两种多元合金分别制成,一种是铅钙多元合金,另一种是铅锑多元合金,负极板的板栅由上述铅钙多元合金制成,正、负极板的板栅制成后采用铸焊方法结合成极群,铸焊前预浸磷酸水溶液和铅锡合金(液态),再用温度为480℃~500℃的锡铅熔液完成铸焊。该工艺用于制作铅酸蓄电池极群,能有效提高极群的电性能,使得电池组充电时,各电池电压趋于一致,电池对电能的接受趋于一致,避免落后电池的产生,从而提高电池组的使用寿命。

Description

铅酸蓄电池极群制作工艺
技术领域
本发明涉及铅酸蓄电池极群的制作工艺,具体讲是涉及极群中板栅制作所采用的合金材料及极群的结合方式。
背景技术
铅酸蓄电池凭借其优良的性能价格比,在二次电池领域中占有举足轻重的地位。在所有水溶液电源体系中,铅酸蓄电池具有较高的工作电压,较好的大电流放电性能和高低温放电性能,它既适合于浮充使用,又适合于起动、循环使用。因此,铅酸蓄电池广泛应用于备用电源、能量贮备、动力能源等领域。
尽管阀控式密封铅酸蓄电池(以下简称VRLA电池)技术已日益成熟,但由于VRLA电池总是被成组使用,使用中存在一些问题。各电池充电时电压差距大,个别电池放电容量过低(单体落后)导至整组电池容量不足,是VRLA电池组常见的一种失效模式,这种失效模式与电池组中各电池的充电接收的一致性有着非常密切的关系。而VRLA电池制作方法特别是电池中极群的制作工艺,板栅采用什么样的多元合金,极群的结合方式是否合理,直接影响到各电池充电接收的一致性,目前还没有较好的方法。
发明内容
本发明要解决的技术问题是克服现有技术中的不足之处,提供一种能有效降低电池的浮充压差,提高电池组使用寿命的铅酸蓄电池极群制作工艺。
本发明的技术方案是:极群中正极板的板栅由两种多元合金分别制成,一种是铅钙多元合金,其组分和质量百分含量为:铅98.55%~99.73%,钙0.06%~0.15%,锡0.2%~1.2%,铝0.01%~0.1%,另一种是铅锑多元合金,其组分和质量百分含量为:铅95.95%~98.86%,锑1%~2.5%,锡0.1%~1%,砷0.01%~0.1%,铜0.01%~0.05%,银0.01%~0.3%,硒0.01%~0.1%,极群中负极板的板栅由上述铅钙多元合金制成,极群中采用铅锑多元合金为板栅的正极板片数不多于正极板总片数的20%,但至少为一片,多片存在时分置于极群内部。上述正、负极板的板栅制成后采用铸焊方法结合成极群。铸焊前先将焊接部位打磨、倒角、然后预浸助焊液和中间介质,再用铸焊料进行铸焊,所用助焊液为质量百分比浓度10%~15%的磷酸水溶液,所用中间介质为质量比1∶1的铅锡合金,温度为250℃~280℃,所用铸焊料为含锡质量百分比为1.5%~2%的铅熔液,温度为480℃~500℃。
根据上述技术方案,电池极群中正极板板栅采用两种不同的多元合金分别制成,并且采用特定的铸焊方法完成极群的结合,有效提高了极群的电性能,使得电池组充电时,各电池电压趋于一致,电池内活性物质(贮能物质)的化学反应环境一致,电池对电能的接收趋于一致,避免了落后电池的产生,从而防止电池组的过早失效,提高电池组的使用寿命。
具体实施方式
下面通过实施例进一步说明本发明。
实例一:称取如下原料,制备铅钙合金:铅9860g、钙15g、锡120g、铝5g;称如下原料,制备铅锑合金:铅9600g、锑250g、锡100g、砷7g、铜5g、银28g、硒10g。用铅钙合金和铅锑合金分别制作板栅A和B,用板栅A和B分别制作正极板A+和B+,用板栅A制作负极板A-。取3片正极板B+、12片正极板A+、15片负极板A-,加上隔膜,结合成极群,其中3片正极板B+分开置于极群内部。极群的结合方式为铸焊,铸焊前,将极板的极耳打磨、倒角,预浸质量百分比浓度12%的磷酸水溶液,再浸质量比1∶1、温度为260℃的铅锡合金,然后在含锡1.6%(质量百分比)、温度为480℃的铅熔液中进行铸焊,冷却后取出。以上工艺除明确描述的过程以外,其余操作按常规方法进行。
实例二:称取如下原料,制备铅钙合金:铅9970g、钙6g、锡21g、铝3g;称如下原料,制备铅锑合金:铅9880g、锑100g、锡10g、砷2g、铜2g、银3g、硒3g。取1片正极板B+、9片正极板A+、10片负极板A-,加上隔膜,用铸焊结合成极群。铸焊前,所浸磷酸水溶液浓度为15%(重量),铅锡合金含量比(重量)1∶1,温度280℃,铸焊用铅熔液含锡2%(重量),温度500℃,其余表述同实例一。

Claims (1)

1.一种铅酸蓄电池极群制作工艺,其特征是极群中正极板的板栅由两种多元合金分别制成,一种是铅钙多元合金,其组分和质量百分含量为:铅98.55%~99.73%,钙0.06%~0.15%,锡0.2%~1.2%,铝0.01%~0.1%,另一种是铅锑多元合金,其组分和质量百分含量为:铅95.95%~98.86%,锑1%~2.5%,锡0.1%~1%,砷0.01%~0.1%,铜0.01%~0.05%,银0.01%~0.3%,硒0.01%~0.1%,极群中负极板的板栅由上述铅钙多元合金制成,极群中采用铅锑多元合金为板栅的正极板片数不多于正极板总片数的20%,但至少为一片,多片存在时分置于极群内部,上述正、负极板的板栅制成后采用铸焊方法结合成极群,铸焊前先将焊接部位打磨、倒角然后预浸助焊液和中间介质,再用铸焊料进行铸焊,所用助焊液为质量百分比浓度10%~15%的磷酸水溶液,所用中间介质为质量比1∶1的铅锡合金,温度为250℃~280℃,所用铸焊料为含锡质量百分比为1.5%~2%的铅熔液,温度为480℃~500℃。
CN2007101333098A 2007-09-28 2007-09-28 铅酸蓄电池极群制作工艺 Expired - Fee Related CN101399334B (zh)

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CN103107371A (zh) * 2012-11-11 2013-05-15 广西天鹅蓄电池有限责任公司 蓄电池极群组的制作方法
CN103264155B (zh) * 2013-05-14 2015-08-05 超威电源有限公司 一种温度控制法铅酸蓄电池制作工艺
CN105206844B (zh) * 2015-08-28 2017-07-28 天能电池集团有限公司 一种包含铅‑石墨烯复合材料的铅蓄电池板栅的制备方法
CN105945452A (zh) * 2016-06-15 2016-09-21 浙江天能动力能源有限公司 一种铅酸蓄电池助焊剂及其制备方法和应用
CN106450342A (zh) * 2016-09-08 2017-02-22 双登集团股份有限公司 阀控式密封蓄电池正极板栅用合金材料及制品结构
CN111118337A (zh) * 2019-12-17 2020-05-08 双登集团股份有限公司 铅酸蓄电池高性能耐腐蚀正极板栅合金
CN112242568B (zh) * 2020-09-25 2022-05-31 浙江铅锂智行科技有限公司 一种铅酸蓄电池的极板连接方法

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CN1435905A (zh) * 2002-11-18 2003-08-13 陈有孝 战斗机、轰炸机地面起动用高能量全密闭铅酸蓄电池

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