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详细信息

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对VRLA蓄电池的深刻认识

发布时间:2019-08-21  浏览:223次  字号:  

 1  对于VRLA(阀控式密封铅酸)电池的使用寿命,现在许多厂家都保证小型电池3年以上,中型5年以上,大型10年以上。但在VRLA电池的生产初期,电池失效的投诉曾经影响了VRLA电池的使用,ALABC经过近6年的努力,终于找到引起VRLA电池失效的原因。

    
   以前的VRLA电池,其放电循环寿命只有50-75次,很少的产品能超过250次放电循环。现在随着新的设计和充电原则的采用,VRLA电池的循环寿命已经超过300次,特殊的设计已超过800次循环寿命。


2  早期容量损失(PCL)

    
手机棋牌游戏出售    VRLA电池的主要问题是未达到预期的寿命,容量就达不到要求。三种PCL现象称为PCL—1,PCL—2,PCL—3。PCL—1是关于正极板的活性物质和板栅界面的问题,PCL—2是在循环使用或浮充使用中正极板的活性物质膨胀和降级,PCL—3是在完全充电状态下,负极板的再充电能力问题。  

 
   (1)PCL—1:接触问题

    ZAI10~50CIXUNHUANZHONG,RONGLIANGTURANSUNSHI,DIANCHIXINGNENGXIAJIANG,ZHEIZHONGQINGKUANGBEICHENGWEI“WUSbXIAOYING”。PCL—1SHIYOUYUBULIANGDAODIANCENGYINQIDE,ZHEIZHONGBULIANGDAODIANCENGJUYOUGAODEDIANZU,JUXIANLEHUOXINGWUZHIDEFANGDIAN。

    在Pb—Ca合金中加入Sn能显著地改善正板栅的腐蚀电阻,当Sn的加入量为1.5%时,极化电阻最低。  Sn的作用机理是在板栅的次边界上偏析以及被氧化成SnO:,深入PbO:中的SnO2不发生化学反应,从而为PbSO2充电时提供导电途径。大量增加Sn的含量不仅使成本上升,板栅的抗腐能力增加,也会使板栅在涂板、固化和化成时造成结合力下降。

    (2)PCL—2:HUOXINGWUZHIDEYINGXIANG

手机棋牌游戏出售    PCL—2SHIYOUYUHUOXINGWUZHIZHIJIANDEJIECHUEHUA,DIANZUZENGJIAERDAOZHIRONGLIANGSUNSHI,ZAIXUNHUANZHONG,ZHENGJIBANHUOXINGWUZHIPENGZHANG,FANGDIANYUESHEN、YUEKUAI,HUOXINGWUZHIPENGZHANGYUEKUAI,RONGLIANGSUNSHIYUEKUAI,SUIZHEGAOBEILVDEFANGDIANHEDALIANGDEGUOCHONGDIAN,SHIZHEIZHONGXIANXIANGBIANDEGENGYANZHONG。

    (3)PCL—3:FUJIYINGXIANG

    PCL—3SHIYOUYUFUJIQUESHAOZAICHONGDIAN,QIDIBU1/3DEDIFANGLIUSUANYANHUA,CONGERDAOZHIRONGLIANGSUNSHI。

手机棋牌游戏出售    ZHEIZHONGXIANXIANGFASHENGZAI200”250CIXUNHUANSHI,DAOZHIDIANCHIDEDIDIANYA,ZHEISHIZENGJIAGUOCHONGDIAN,YANGQISHENGCHENG、CHUANSHU、HUAHEDOUZENGJIA,FUJICHANSHENGQUJIHUAZUOYONG,FUJIDEJIHUADIANWEIJIANGDI。

 

3  RENSHIVRLAXUDIANCHIDESANGEJIBENGUANDIAN

    大家都知道,通过参比电极,我们能测量单格电池中正、负极的独立电极电位,这种方法在富液电池中比较容易,但使用Hg/Hg:SO4参比电极也能测量VRLA电池中正、负电极电位以及它们完全放电过程中电极电位的变化,通过对电池的完全放电,我们能决定正、负电极对整个蓄电池容量的贡献,再看其放电曲线,就可知道哪一个电极决定蓄电池的容量。

    LIYONGCIJISHU,WOMENNENGKANDAOVRLADIANCHIZAIZHENGGEDIANCHIDEXUNHUANSHOUMINGZHONGRONGLIANGDEZHUJIANSUNSHISHIYOUYUFUJIYIHENGDINGDESUDUSUNSHIRONGLIANGSUOZAOCHENGDE。ZHEISHIRENSHIVRLADIANCHIDEDIYIGEJIBENDIAN。

手机棋牌游戏出售    VRLADIANCHIRONGLIANGSUNSHISHIZHUJIANJIANSHAODE,ERFUYEDIANCHIZEBAODIE,ZHEISHIYINWEI,SHOUXIAN,VRLADIANCHIHEFUYEDIANCHIDECAOZUOFANGSHIBUTONG,ZAIVRLADIANCHIZHONG,FUJIBEIYANGQIBAOWEI,QINONGDUBIFUYEDIANCHIGAOJIGESHULIANGJI,YOUYUFUJIDEYANGHUAJIANGXIAOHAOCHONGDIANXUNHUANMOQIDESUOYOUCHONGDIANDIANLIU、LIYONGCANBIDIANJI,WOMENYANJIUVRLADIANCHIDECHONGDIANGUOCHENGSHIFAXIAN,ZHIYAOZAIZHENGJICHANSHENGDEYANGQICHUANSHUDAOFUJINENGWANQUANHUAHE,YOUYUYANGDEHAIYUANFANYING,FUJICHUYUWANQUANQUJIHUAZHUANGTAI。JIUBUKENENGTIGAODIANWEIDAODAHUOCHAOGUOQIGUODIANWEI,CHONGDIANDIANLIUYINGYONGDEJIEGUOBUCHANSHENGH:,ZHEISHIRENSHIVRLAXUDIANCHIDEDIERGEJIBENDIAN。

    VRLAXUDIANCHIZAIHENDIDEDIANLIUXIAFUCHONGSHIWEILEJIANGDIZHENGBANZHADEFUSHISUDUHEBANZHAPENGZHANG,ZHEISHIPbDEYANGHUAJIANGXIAOHAOSUOYOUDECHONGDIANDIANLIU,YOUYUFUJIBENSHENDEZIFANGDIANSUOYINQIDERONGLIANGSUNSHIJIANGBUNENGDEDAOBUCHANG,VRLAXUDIANCHIDEFUJIRONGLIANGZHUJIANSUNSHI,ZHEISHIRENSHIVRLAXUDIANCHIDEDISANGEJIBENDIAN。

    ZAICHONGDIANXUNHUANZHONG,FUJIDERONGLIANGSUNSHISHIYOUYUZIFANGDIAN,YINWEIFUJIBUJIHUAJIUBUNENGWANQUANCHONGDIAN。RANER,RUGUOWOMENJIHUAFUJI,JIANGSHIFUJICHUYUWANQUANCHONGDIANZHUANGTAICONGERHUIFURONGLIANG,ZHEISHIFUJIJIUHUICHANSHENGH:,DAOZHIDIANCHISHISHUIHEGANHE,YINGXIANGDIANCHISHOUMING。ZHEIKANQILAIHAOXIANGYOUXIEMAODUN。WEILEGENGHAODERENSHIVRLAXUDIANCHI,WOMENJIUBIXURENSHIZAIVRLAXUDIANCHIZHONGZHENGJIBANZHAFUSHIHEFUJIZIFANGDIANYIJITAMENZHIJIANDEPINGHENGZHUANGTAI。

 

4BANZHAFUSHIJIZIFANGDIAN

手机棋牌游戏出售    ZAIVRLAXUDIANCHIZHONG,ZHENGFUJITONGSHIFASHENGSANZHONGFANYING:

ZHENGJI:

    PbSO4→PbO2    (主反应)

    H2O→02+2H+  (水分解)

    Pb→PbO2    (板栅腐蚀)

FUJI:

    PbSO4→Pb    (主反应)

    Pb+02→PbO  H2SO4  PbSO4(氧化合)

 

    Pb→PbSO4+H2手机棋牌游戏出售    (自放电)

CHUZHUFANYINGWAI,SIGEFUFANYINGKEMIAOSHUCHENGXIALIEBANFANYING:

    水的分解:6H2O十Pb→4H30+十O2↑十4e

    板栅腐蚀:6H20十Pb→Ph02十4H20十4e

    氧的化合:02+2H2手机棋牌游戏出售0+4e→40H-

    Pb的自放电:Pb+H2S04→PBS04+H2

手机棋牌游戏出售    (YOUHAIZAZHIDEYINGXIANG)

    板栅腐蚀和负极自放电都是可以变化的化学反应,在一定程度上可以控制。正板栅的腐蚀可以通过选择合金、晶型、制造方法和改变充电或维持电极的浮充极化来控制。负极的自放电取决于在电池制造中无机和有机物杂质的含量,而且自放电是一个连续的过程,不管是充电、放电、开路或浮充,都以一定的速度发生,其反应速度由杂质影响,而且可以通过充电转变为负极活性物质:    PbSO4十2H20十2e→Pb十H2S04+20H-

    ZAISIGEZHUYAODEFUFANYINGZHONG,CUNZAIZHEYIXIABUTONGTIAOJIANXIADEPINGHENG。

    DIYIZHONGPINGHENG:YANGQIDESHENGCHENGHEHUAHESUDUXIANGDENG,BANZHAFUSHISUDUDAYUHUODENGYUFUBANZIFANGDIANDESUDU,QIHUAXUEFANYINGRUXIA:

    2H2O+Pb=PbO2+2H2

手机棋牌游戏出售    ZAIZHEIZHONGQINGKUANGXIA,LIANGGESHUIFENZIFENJIECHENGYANGYUANZI,YU  PbHUAHE,ERQINGYUANZIBIANWEIH:,SUOYOUFUJIDEZIFANGDIANBUJINNENGCHIXUDAOZUIHOU,HAINENGZAIXINDEXUNHUANZHONGZHONGXINCHONGDIAN。SUOYIFUJIRONGLIANGBUHUISUNSHI,DANSHUIJIANGYONGYUANDICONGXITONGZHONGSUNSHI,DIANCHIJIANGZHUJIANGANHE,CONGERYINGXIANGDIANCHIDEFANGDIANRONGLIANG。YONGCHENGZHONGFACELIANGSHUIDESUNSHISHIKUNNANDE,YINWEISHUIFENZIZHONGDEYANGYUANZIYIYUPbJIEHEJINRUDIANCHIZHONG。

    DIERZHONGPINGHENG:YANGDESHENGCHENGHEHUAHEDESUDUXIANGDENG,BANZHAFUSHISUDUDIYUFUJIZIFANGDIANDESUDU,QIHUAXUEFANYINGRUXIA:

  3Pb+2H2SO4+2H202=2PhS04+PbO2+4H2

    ZAIZHEIZHONGQINGKUANGXIA,LIANGGESHUIFENZIHELIANGGELIUSUANFENZIJIANGCONGDIANCHIZHONGXIAOSHI,CONGERYINGXIANGLIANGGEDIANJIDERONGLIANG,DANGFUJIDEZIFANGDIANWEIZHUYAOFANYINGSHI,DUIDIANCHIGANHEHEDIANCHIRONGLIANGDESUNSHIYOUJIAODAYINGXIANG,GENGZHONGYAODESHIFUJIBUDUANDIFANGDIAN,ZENGJIACHONGDIANHUOFUCHONGDIANLIUYEBUNENGSHIDIANCHIWANQUANCHONGZUDIAN。

手机棋牌游戏出售    DISANZHONGPINGHENG:YANGDESHENGCHENGSUDUDAYUYANGDEHUAHESUDU,BUGUANBANZHAFUSHISUDUYUZIFANGDIANSUDUDEGUANXIRUHE,QIZHENGGEHUAXUEFANYINGRUXIA:

    4H20+Pb=PbO2+4H2↑+02

    4个水分子生成H2和02。化合效率越低,增加电流所产生的H2和02就越多,将导致电池很快干涸和容量损失,在这种情况下,电池初期负极仍处在完全充电状态。

    HENXIANRAN,WOMENDOUXIWANGJIANGDIBANZHAFUSHIHEZIFANGDIANDESUDU,DANBUNENGJIANGDAOJUEDUILING,ERQIESUIZHE“DIANCHINIANLING”DEBIANHUA,GEZHONGFANYINGDESUDUJIANGFASHENGBIANHUA,SUOYIZHIXIWANGZAIMOUZHONGTEDINGZHUANGTAIXIA,QUDEYIZHONGZUIJIADEPINGHENG。

手机棋牌游戏出售    CONGYISHANGDETAOLUNDEZHI:JIEJUEVRLAXUDIANCHIRONGLIANGSHUAIJIANWENTIDEWEIYIYOUXIAOERQIEMINGXIANDETUJING,JIUSHISHIDIANCHICHUYUDIYIZHONGPINGHENGZHUANGTAI,ZHEISHIFUJICHUYUWANQUANCHONGDIANZHUANGTAI,ERQIEYETIDESUNSHILVJIANGJIANBAN。RUGUOBANZHAFUSHIZHANZHUDAODIWEI,ZENGJIADIANLIU,YENENGJIANMANDIANCHIGANHEDESUDU,SHIFUJICHUYULIANGHAODECHONGDIANZHUANGTAI,QISHIJIANCHAOGUOYUQISHIYONGSHOUMINGERDADAOMUDE。YAOSHIBANZHAFUSHIZHANZHUDAODIWEI,ZUIJIADEFANGFAJIUSHIJIANGDIFUJIZIFANGDIANDESUDU,SHIZHIJINKENENGDIYUBANZHAFUSHISUDU。ZHEISHIGAIJINHEYANZHANGⅦIADIANCHIDEZUIHAOYESHIZUILIXIANGDEFANGFA。

 

5 VRLAXUDIANCHIDECHONGDIAN

手机棋牌游戏出售    VRLADIANCHIDECHONGDIANFANGFASHEJIDAORUHESHIDIANCHIWANQUANCHONGDIAN,JIANGDIGUOCHONGDIAN、JIANGDIQIANCHONGDIAN、YANZHANGSHOUMING,ZAIWEICHIRONGLIANGFANGMIAN,GAODECHUSHIDIANLIUSHIYOULIDE,GUOCHONGDIANJINKENENGDIJIANSHAO,CONGERJIANSHAOSHUIDESUNHAO,YOUNENGBAOCHIZHENG、FUWUZHIDEHUOXING,MAICHONGCHONGDIANNENGKEFUYANGHUAHEDEYINGXIANG,SUOYIHAODECHONGDIANFANGSHIBUJINNENGWEICHIVRLADIANCHIDERONGLIANG,HAINENGXIANZHUZENGJIADIANCHIDEXUNHUANSHOUMING。

手机棋牌游戏出售    (1)CHUCHONGDIAN

手机棋牌游戏出售    XIANJIEDUANVRLADECHUCHONGDIANYOUYIXIAJIZHONGFANGSHI:

    ①CHUANLIANCHONGDIAN:CAIYONGGAOYA、XIAODIANLIUCHONGDIANQI,YIBANLAIJIANG,CHONGDIANQIDESHUCHUDIANYAWEI300—450V,DIANLIUSHUCHU5-30A,DIANLIUKEKONGZHI,MEIGEDIANCHICHONGRENDEDIANLIANGKEKONGZHI,KEFANGDIANJIANCEDIANCHIRONGLIANG,TICHUGUZHANGDIANCHI,XIANSHENGCHANCHANGJIAPUBIANCAIYONGZHEIZHONGFANGFA。

    ②BINGLIANCHONGDIAN:CHONGDIANQIWEIDIDIANYA、DADIANLIU,MEIGEDIANCHIDEDIANLIUYUDIANCHIDECHONGDIANZHUANGTAIHENEIZUYOUGUAN。BUNENGJISUANMEIGEDIANCHICHONGRENDEDIANLIANG。BINGLIANCHONGDIANKONGZHIDIANYA,JIHUWUSHENGCHANCHANGJIACAIYONG。

    ③CHUANLIANBINGLIANHUNHECHONGDIAN:YIBANCAIYONGXIANCHUANLIANHOUBINGLIANDEFANGSHIJINXING,CHONGDIANQICHANGWEI150VDIANYASHUCHU,DIANLIU30-100A,DANGEDIANCHIWUDIANYA、DIANLIUKONGZHI,KEFENZUFANGDIANJIANCHA,XIANYOUZAIBUSHAOCHANGJIACAIYONGZHEIZHONGFANGSHI。

    ④DANDIANCHICHONGDIAN:KEZHUNQUEDIJINXINGCHONG、FANGDIAN,NENGKONGZHIDIANLIU、DIANYA,NENGJIANGMEIGEDIANCHIJINXINGFENJI、TIAOXUAN,PUBIANZAICESHISHANGSHIYONG。

    ⑤MOKUAIKONGZHIDANDIANCHICHONGDIAN:MEIGEMOKUAIKECHONG64GEDIANCHI,MEITAICHONGDIANQIKECHONG700DUOTAIDIANCHI,ZAIYIGEMOKUAIZHONG1TAIHUODUOTAIGUZHANGBUYINGXIANGQITADIANCHICHONGDIAN,KEJINXINGHENGYA、HENGLIUKONGZHI,BAOZHENGDIANCHIBUHUIGUOCHONG,HAINENGJIANCHARONGLIANGHEJINXINGDIANCHIFENJI,ZHEIJIANGSHIJINHOUDEFAZHANFANGXIANG。

手机棋牌游戏出售    (2)FUCHONGDIAN

    DANGVBLADIANCHIFUCHONGSHI,DIANYAHEDIANLIUSHEZHIJIAODI,YINCIXIQIHEBANSHANFUSHIJUNBUYANZHONG,DADUOSHUFUCHONGJUNCAIYONGHENGYAFUCHONG,MEIDANTISHEZHIYIBANWEI2.20-2.27VZUOYOU。DUIDIANCHIZULAISHUO,FUCHONGSHIGEDANTIDIANCHIDEDIANYASHIBUXIANGTONGDE,BAOHEDUGAODEDIANCHICHUYUJIAOGAODIANYABINGXICHUQITI,BAOHEDUDIDEDIANCHIYOUYUYANGHUAHEDEQUYANGHUAZUOYONGERCHUYUJIAODIDIANYA,ZHEIXIEDIANCHIDEFUJIYOUBUNENGWANQUANCHONGDIANDEWEIXIAN。FUCHONGYIDUANSHIJIANHOU。GEDANTIDIANCHIDEDIANYAJIANGZHUJIANJUNHENG,DANDIANCHIDEFANGDIANJIEGUOKENENGBUJINRENYI。

手机棋牌游戏出售    JIARUOTIGAOFUCHONGDIANYADESHEDINGZHI,JIANGSUODUANDIANCHISHOUMING,RUODIANCHICHUYUGAOWENHUANJINGXIA,HAIKENENGFASHENGRESHIKONGDEWEIXIAN。

手机棋牌游戏出售  ZUIHAODEFANGFASHI:

手机棋牌游戏出售  ①TUOLISHEBEICHONGDIAN,RUOYOULIANGZUDIANCHI,ZEDUIDIANCHIZUJINXINGJIAOTICHONGDIAN。DUIYUYIZUDIANCHI,DUIQIJINXINGDUANQICHONGDIAN,YIBANCAIYONG2.6V/DANTI,BAOZHENGDIANCHIZUGEDANTICHONGDIANJUNHENGHOU,JINGZHIYIDUANSHIJIANHOU,ZAIJINXINGFUCHONG。

    ②CAIYONGJUNHENGCHONGDIAN,JIANGDIANCHIZUJINXINGFANGDIAN,CAIYONG2.35V/DANTIJINXINGJUNHENGCHONGDIANYIDUANSHIJIANHOU,ZHUANRUFUCHONG。

手机棋牌游戏出售    (3)XUNHUANCHONGDIAN

 ZAIXUNHUANYINGYONGLINGYU,VRLADIANCHIDOUCAIYONGBOJIBANSHEJILAITIGAOBINENGLIANGHEDADIANLIUXINGNENG。DUIYUBOJIBANDEVLRADIANCHIZUIHAODECHONGDIANFANGFASHIMAICHONGHEDIANLIUDIJIANFANGSHICHONGDIAN。  MAICHONGFANGSHIKEZAIDUANSHIJIANNEIGAOSHURUDIANLIUKUAISUCHONGMAN,JUYOUHENXIAODEGUOCHONG;DIANLIUDIJIANFACHONGDIANJUYOUTONGYANGDEYOUDIAN,DANFANGFAWANQUANBUTONG。DADIANLIUKUAISUCHONGDIANDEGUANJIANSHIFUHEGUOCHENG,TIGONGZUGOUDEDIANLIUBINGYADAOCIGUOCHENG,DANGDIANCHILAOHUASHI,FUHEXIAOLVYUELAIYUEJULIE,DANJIBANBO、BIAOMIANJIDA、JIBANJIANJUXIAO、CHONGDIANXIAOLVGAO。

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