一、紐扣電池的保質期是多久
紐扣電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)也稱扣式電(dian)(dian)(dian)(dian)池(chi)(chi)(chi),是指(zhi)外(wai)形(xing)尺寸象(xiang)一顆(ke)小紐扣的(de)(de)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi),一般來說(shuo)直徑較(jiao)大(da)(da),厚度較(jiao)薄(bo)(相(xiang)對于(yu)柱狀電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)如市場(chang)上(shang)的(de)(de)5號(hao)AA等電(dian)(dian)(dian)(dian)池(chi)(chi)(chi))。紐扣電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)是從外(wai)形(xing)上(shang)來對電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)來分,同等對應的(de)(de)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)分類有柱狀電(dian)(dian)(dian)(dian)池(chi)(chi)(chi),方形(xing)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi),異形(xing)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)。不同型號(hao)的(de)(de)紐扣電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)保質期(qi)不同一般為5年左(zuo)右,最長的(de)(de)可(ke)達(da)十年之久。至于(yu)紐扣電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)生產日(ri)期(qi)怎(zen)么看,一般紐扣電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)上(shang)都(dou)(dou)有生產日(ri)期(qi),不過大(da)(da)部分國產電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)上(shang)都(dou)(dou)沒(mei)有標日(ri)期(qi),只有進口的(de)(de)才(cai)會(hui)有。
二、如何識別紐扣電池
1、從電池標志上識別
為了防(fang)止(zhi)偽劣紐扣電池及過期(qi)紐扣電池,我們(men)可以從電池標(biao)(biao)志(zhi)上識(shi)別。它們(men)一無(wu)商標(biao)(biao)、二無(wu)產地、三無(wu)生(sheng)產日(ri)(ri)期(qi)、四無(wu)檢驗合(he)格證,只是在電池上標(biao)(biao)有英文“BUTTONCELL”和日(ri)(ri)文,給人以外國制造的(de)假象。
2、從電池外觀上識別
這類(lei)電池負極的一側表面大部(bu)分鍍成黃色,給(gei)人以鍍“金”感。正(zheng)(zheng)極外殼底部(bu)易(yi)出現銹蝕斑點。正(zheng)(zheng)品紐扣(kou)電池表面鍍層光滑,電池背面的黑色密封環(huan)處不應(ying)有掉色現象。
3、從電池性能上識別
絕大多(duo)數(shu)堿(jian)錳電(dian)(dian)池(chi)容(rong)量低,通常不(bu)足國家標準(zhun)1.55V,使用壽命短,容(rong)易漏(lou)液,腐蝕電(dian)(dian)器,電(dian)(dian)壓負(fu)載特性差,電(dian)(dian)池(chi)放(fang)電(dian)(dian)曲線(xian)呈急劇下降的斜線(xian);容(rong)易產(chan)生氣(qi)脹,引起電(dian)(dian)池(chi)“鼓肚(du)子”。
4、過期紐扣電池辨識
紐扣(kou)電(dian)池的負極面會(hui)標上“**”兩個(ge)數字(zi),第(di)一個(ge)數字(zi)為年份,第(di)二個(ge)數字(zi)為月份,其中第(di)二個(ge)數字(zi)如(ru)果為“0,X,Y”則代表“10月,11月,12月”,超(chao)過保質期的就(jiu)應(ying)該換(huan)掉電(dian)池。
三、紐扣電池的選用與使用方法
1、選用紐(niu)(niu)扣電池時應注意紐(niu)(niu)扣電池的直徑與(yu)厚度(du)(高(gao)度(du)),否則不能(neng)置于所要(yao)安裝的電器產品中。
2、因(yin)為紐扣電池的類型較多(duo)所用(yong)材(cai)料不同,故選(xuan)用(yong)時應(ying)根據電子產品的不同而(er)有所不同。如(ru)用(yong)于指針式手表(biao)可選(xuan)用(yong)氧化(hua)(hua)銀或過氧化(hua)(hua)銀電池,對(dui)數字(zi)式手表(biao);因(yin)有點(dian)燈(deng)和響鬧(nao)功能,故要選(xuan)用(yong)容量較大的,電解液為氫(qing)氧化(hua)(hua)鉀(KOH)的氧化(hua)(hua)銀電池。
3、在使用過程中要防止(zhi)正、負極位置顛倒。在紐扣電(dian)池的外(wai)表(陽極罐)一般(ban)都標有 "+"的字(zi)(zi)樣(yang),即表示正極,沒有標字(zi)(zi)樣(yang)的圓形蓋(陰極蓋)即為負極。
4、在使用中不允許用電(dian)烙鐵在電(dian)池上焊接(jie)引線。
5、用(yong)完的電(dian)(dian)池(chi)嚴禁投大(da)火申焚燒,因為這(zhe)樣會使電(dian)(dian)池(chi)的溫(wen)度(du)升高,造成(cheng)炸裂。
6、紐(niu)扣電池除有標明者外,一般都為一次性電池,故不能(neng)對其進行充(chong)電,以免發生爆裂。
7、應盡量避免在高溫環(huan)境(jing)中使用(yong)紐扣電池(chi),以減少電池(chi)的(de)放電損耗。
8、應盡量避免用兩手(shou)指長時間捏住紐(niu)扣(kou)電(dian)池(chi)的證、負極(ji),或(huo)用金屬導體將電(dian)池(chi)的正、負極(ji)短(duan)接,這樣都會(hui)使(shi)電(dian)池(chi)短(duan)路而(er)損壞。