宁夏11选5

17年专注锂电池定制

一般在什么情况下锂电池才会发生爆炸

来源:钜大LARGE    2018-05-08    点击量:35110

日常生活中,锂电池几乎随处可见,大到电动汽车,小到电脑主板电池宁夏11选5,锂电池已经成为了人们不可或缺的一部分。我们经常会看到一些由于锂电池而引起的各种安全事故,给人印象最深刻的莫过于锂电池产生的爆炸、起火等现象。


1、BIMIANDUANLUJIGUOCHONG。


因为锂电池而引起的安全事故几乎大多数都是由于短路而引起的。我们知道,当电池的正负极在电阻非常小的情况下相互连接的非正常通路,即我们常说的短路时,电池内部会产生非常大的电流和热量,产生的热和过强的电能释放不仅会导致电池寿命严重受损,而且对于使用密闭封装而成的锂电池来说,其内部会产生一定的压力从而导致电池内部压力骤增,并且由于锂离子的化学特性非常活泼,最终会产生外壳爆裂和燃烧的情况出现。由于锂离子电池的化学特性,当我们对电池进行过度充电(过充)操作时,由于锂电池负极无法嵌入更多的锂离子,导致锂离子在负极表面以金属锂析出,造成枝晶锂现象的出现,当枝晶锂生长到一定程度便会刺破隔膜,造成电池内部短路,出现隔离膜破损,同样会出现内部短路的情况,从而引发安全事故。所以,在我们日常使用锂电池时,应尽量避免出现短路或者过充的情况出现,不过对于目前大多数数码产品来说,其内部充电电路都会配备相应的保护IC来避免锂电池的过充现象,当保护电路检测到锂电池已经到达满电状态下,会自动切断充电电路。但是这里仍然不建议将手机或者其他设备长时间的连接在通电状态下的充电器上,毕竟谁都不想用自己的手机或者其他设备乃至人身安全去和一个小小的充电保护芯片打赌。


2、CICHUANTONGYANGHENWEIXIAN。


宁夏11选5XIANGBIDUANLUJIGUOCHONGLAISHUO,JIANGLIDIANCHICICHUANTONGYANGSHIYIGEFEICHANGBUMINGZHIDEZUOFA。RUGUOLIDIANCHIBEIRENHEYINGWUCICHUAN,QINEIBUDELILIZIHUIZHIJIEYUKONGQIZHONGDEYANGCHANSHENGHUAXUEFANYING,TONGYANGHUICHUXIANJULIERANSHAODEXIANXIANG。DUIYULIDIANCHIBENSHENHUOZHEQITANEIBUHANYOULIDIANCHIDEDIANZICHANPINLAISHUO,TONGCHANGWOMENDOUHUIKANDAOXINGMUDELAJITONGBIAOZHI。RUGUOSUIYIDIUQILIDIANCHIBUJINHUIZAOCHENGHUANJINGDEWURAN,ERQIEZAILAJICHULIGUOCHENGZHONGYEBIJIAORONGYIFASHENGHUOZAIDENGQINGKUANG。


3、BIMIANGAOWENJIHUOKAOGAOWENHUOZHEHUOSHAOTONGYANGHUIDAOZHILIDIANCHIDEBAOZHAHERANSHAODEXIANXIANGCHUXIAN。


宁夏11选5YOUQIZAIYANREDEXIAJIHUOZHEZHANGSHIJIANBAOSHAIDECHENEI,DOUHUIDAOZHILIDIANCHISUOCHUDEHUANJINGWENDUGAOYUQIZHENGCHANGCUNFANGWENDU。SUOYIZAIWOMENSHIYONGNEIHANLILIZIDIANCHIDESHEBEISHI,YINGGAIJINLIANGBIMIANZAIGUOGAOWENDUDEHUANJINGZHONGZHANGSHIJIANSHIYONG,SUIRANLIDIANCHIZAIZHIJIESHIYONGHUOKAODEQINGKUANGXIA,CHANSHENGBAOZHAHERANSHAODESHIJIANXIANGDUIJIAOZHANG,BUGUORENGRANHUICHUXIANQINEIBUYALIZHOUZENGDEQINGKUANG,YEJIUSHIWOMENCHANGSHUODEGUBAO。DANGWOMENDESHOUJIDIANCHIHUOZHEQITALILIZIDIANCHICHUXIANGUBAODEQINGKUANG,YINGLIJIQIEDUANDIANYUANBINGTINGZHISHIYONG,YIFANGZHINEIBUYALIJINYIBUZENGJIA,BINGGENGHUANXINDIANCHI。


CHANSHENGDIANCHIBAOZHAYIBANYOUYIXIAJIZHONGQINGKUANG:


1.GUOCHONGBAOZHA


BAOHUXIANLUSHIKONGHUOJIANCEJUSHIKONGSHICHONGDIANDIANYADAYU5V,ZAOCHENGDIANJIEYEFENJIE,DIANCHINEIBUFASHENGJULIEFANYING,DIANCHINEIYAXUNSUSHANGSHENG,DIANCHIBAOZHA。


2.GUOLIUBAOZHA


宁夏11选5BAOHUXIANLUSHIKONGHUOJIANCEJUSHIKONGSHICHONGDIANDIANLIUGUODAZAOCHENGLILIZILAIBUJIQIANRU,ERZAIJIPIANBIAOMIANXINGCHENGLIJINSHU,CHUANTOUGEMO,ZHENGFUJIZHIJIEDUANLUZAOCHENGBAOZHA(HENSHAOFASHENG)。


3.CHAOSHENGBOHANSULIAOWAIQIAOSHIBAOZHA


宁夏11选5CHAOSHENGBOHANSULIAOWAIQIAOSHI,YOUYUSHEBEIYUANYINSHIQICHAOSHENGBONENGLIANGZHUANYIZHIDIANCHIXINSHANG,CHAOSHENGBONENGLIANGHENDASHIDIANCHINEIBUGEMORONGHUA,ZHENGFUJIZHIJIEDUANLU,CHANSHENGBAOZHA。


4.DIANHANSHIBAOZHA


DIANHANSHIDIANLIUGUODAZAOCHENGNEIBUYANZHONGDUANLUCHANSHENGBAOZHA,LINGWAI,DIANHANSHIZHENGJILIANJIEPIANZHIJIEYUFUJIXIANGLIAN,SHIZHENGFUJIZHIJIEDUANLUHOUBAOZHA。


5.GUOFANGBAOZHA


DIANCHIGUOFANGDIANHUOGUOLIUFANGDIAN(3CYISHANG)RONGYISHIFUJITONGBORONGJIECHENJIDAOGEMOSHANGSHIZHENGFUJIZHIJIEDUANLUCHANSHENGBAOZHA(HENSHAOFASHENG)。


6.ZHENDONGDIELUOSHIBAOZHA


DIANXINZAIJULIEZHENDONGHUODIELUOSHIZAOCHENGDEDIANXINNEIBUJIPIANCUOWEI,ZHIJIEYANZHONGDUANLUERBAOZHA(HENSHAOFASHENG)。


宁夏11选5LIDIANCHIXINGUOCHONGDAODIANYAGAOYU4.2VHOU,HUIKAISHICHANSHENGFUZUOYONG。GUOCHONGDIANYAYUGAO,WEIXIANXINGYEGENZHEYUGAO。LIDIANXINDIANYAGAOYU4.2VHOU,ZHENGJICAILIAONEISHENGXIADELIYUANZISHULIANGBUDAOYIBAN,CISHICHUCUNGECHANGHUIKUADIAO,RANGDIANCHIRONGLIANGCHANSHENGYONGJIUXINGDEXIAJIANG。RUGUOJIXUCHONGDIAN,YOUYUFUJIDECHUCUNGEYIJINGZHUANGMANLELIYUANZI,HOUXUDELIJINSHUHUIDUIJIYUFUJICAILIAOBIAOMIAN。ZHEIXIELIYUANZIHUIYOUFUJIBIAOMIANWANGLILIZILAIDEFANGXIANGZHANGCHUSHUZHIZHUANGJIEJING。ZHEIXIELIJINSHUJIEJINGHUICHUANGUOGEMOZHI,SHIZHENGFUJIDUANLU。YOUSHIZAIDUANLUFASHENGQIANDIANCHIJIUXIANBAOZHA,ZHEISHIYINWEIZAIGUOCHONGGUOCHENG,DIANJIEYEDENGCAILIAOHUILIEJIECHANSHENGQITI,SHIDEDIANCHIWAIQIAOHUOYALIFAGUZHANGPOLIE,RANGYANGQIJINQUYUDUIJIZAIFUJIBIAOMIANDELIYUANZIFANYING,JINERBAOZHA。


YINCI,LIDIANCHICHONGDIANSHI,YIDINGYAOSHEDINGDIANYASHANGXIAN,CAIKEYITONGSHIJIANGUDAODIANCHIDESHOUMING、RONGLIANG、HEANQUANXING。ZUILIXIANGDECHONGDIANDIANYASHANGXIANWEI4.2V。LIDIANXINFANGDIANSHIYEYAOYOUDIANYAXIAXIAN。DANGDIANXINDIANYADIYU2.4VSHI,BUFENCAILIAOHUIKAISHIBEIPOHUAI。YOUYOUYUDIANCHIHUIZIFANGDIAN,FANGYUJIUDIANYAHUIYUDI,YINCI,FANGDIANSHIZUIHAOBUYAOFANGDAO2.4VCAITINGZHI。LIDIANCHICONG3.0VFANGDIANDAO2.4VZHEIDUANQIJIAN,SUOSHIFANGDENENGLIANGZHIZHANDIANCHIRONGLIANGDE3%ZUOYOU。YINCI,3.0VSHIYIGELIXIANGDEFANGDIANJIEZHIDIANYA。CHONGFANGDIANSHI,CHULEDIANYADEXIANZHI,DIANLIUDEXIANZHIYEYOUQIBIYAO。DIANLIUGUODASHI,LILIZILAIBUJIJINRUCHUCUNGE,HUIJUJIYUCAILIAOBIAOMIAN。


这些锂离子获得电子后,会在材料表面产生锂原子结晶,这与过充一样,会造成危险性。万一电池外壳破裂,就会爆炸。因此,对锂离子电池的保护,至少要包含:充电电压上限、放电电压下限、及电流上限三项。一般锂电池组内,除了锂电池芯外,都会有一片保护板,这片保护板主要就是提供这三项保护。但是,保护板的这三项保护显然是不够的,全球锂电池爆炸事件还是频传。要确保电池系统的安全性,必须对电池爆炸的原因,进行更仔细的分析。


1、NEIBUJIHUAJIAODA;


2、JIPIANXISHUI,YUDIANJIEYEFASHENGFANYINGQIGU;


宁夏11选53、DIANJIEYEBENSHENDEZHILIANG、XINGNENGWENTI;


宁夏11选54、ZHUYESHIHOUZHUYELIANGDABUDAOGONGYIYAOQIU;


5、ZHUANGPEIZHICHENGZHONGJIGUANGHANJIEMIFENGXINGNENGCHA,CELOUQISHILOUQI;


宁夏11选56、FENCHEN、JIPIANFENCHENSHOUXIANYIDAOZHIWEIDUANLU;


7、ZHENGFUJIPIANJIAOGONGYIFANWEIPIANHOU,RUQIAONAN;


宁夏11选58、ZHUYEFENGKOUWENTI,GANGZHUMIFENGXINGNENGBUHAODAOZHIQIGU;


宁夏11选59、QIAOTILAILIAOCUNZAIQIAOBIPIANHOU,QIAOTIBIANXINGYINGXIANGHOUDU;


宁夏11选510、WAIMIANHUANJINGWENDUGUOGAOYESHIDAOZHIBAOZHADEZHUYAOYUANYIN。