我國開發超級電容器
http://kadhoai.com.cn 2026-04-27 04:10:40 來源:中國電子元件行業協會
據英國《新科學家》zazhibaodao,younamihuahenamicaozuchengdenamijimuchangkeyijiangyuelaiyueduodenengliangzhucunzaichaojidianrongqizhong,erchaojidianrongqikeyiqudaidiandongqichezhongsuoshiyongdedianchi。
youyudianchizhucundeshihuaxueneng,yincidemanmanchongdian,xiangbizhixia,dianrongqizhucundeshidianneng,yincizaichongdiandetongshinenghenkuaichongmandian,zhishidianliangbutaiduo。dansuizhejishudejinbu,jinnianlaidedianrongqidedaolehendadetisheng,muqianzhengzaikaifadechaojidianrongqizhucundedianliangshiyibandianrongqideshuqianbei,yincikeyiqudongdiandonggongjushenzhidiandongqiche。buguo,zaizhenzhengshiyongzhiqian,chaojidianrongqidezhudiannenglihaiyoudaijinyibutigao。erwoguokexuejiayijingzhaodaolexinbanfa,kewangrangtamenjinkuaiyingyongyushijizhong。
qishi,chaojidianrongqishiyizhongjiandanzhuangzhi,tamentongguoxuanfuzaidianjieyezhongdelianggedianjizhijiansuochanshengdedianyalaichongdian,jizhengliziyitoulianzheyigedianji,fuliziyitoulianzhelingyigedianji。youyucidianjishangtuyouduokongshenshuicailiao,keyixianghaimianyiyangxishoulizi,congerkeyidadaozhucunnengliangdemude。ciduokongshenshuicailiaoyibandoushiyonghuoxingtan。weitigaochaojidianrongqidezhudiannengli,jiuderangzhexietanhaimiangengjiaduokong。rujin,woguohuaxuefanghuyanjiusuodezhanghao(音譯)和(he)北(bei)京(jing)大(da)學(xue)的(de)同(tong)事(shi)一(yi)道(dao)采(cai)取(qu)了(le)不(bu)同(tong)的(de)辦(ban)法(fa)來(lai)改(gai)進(jin)超(chao)級(ji)電(dian)容(rong)器(qi)的(de)性(xing)能(neng)。他(ta)們(men)將(jiang)離(li)子(zi)貯(zhu)存(cun)在(zai)氧(yang)化(hua)錳(meng)中(zhong),而(er)氧(yang)化(hua)錳(meng)比(bi)活(huo)性(xing)碳(tan)還(hai)有(you)更(geng)多(duo)的(de)空(kong)間(jian)來(lai)貯(zhu)存(cun)離(li)子(zi)。
然ran而er,雖sui然ran氧yang化hua錳meng貯zhu存cun離li子zi很hen出chu色se,但dan它ta有you較jiao高gao的de電dian阻zu,從cong而er使shi它ta很hen難nan實shi現xian第di一yi場chang所suo充chong電dian,得de進jin行xing雙shuang倍bei充chong電dian。於yu是shi,研yan究jiu人ren員yuan將jiang氧yang化hua錳meng納na米mi花hua種zhong在zai直zhi徑jing大da約yue100納米的碳納米管草上,而碳納米管草又種在鉭金屬薄片上,由此形成了“納米牧場”dejingweijiegou。zhanghaobiaoshi,meiyiduoyanghuamengnamihuazhishaoyouergentannamiguancaozhichengzhe,houzhebanyandianzichaojigonglu,geishangmiandeyanghuamengnamihuagongdian。dangyanghuamengnamihuachongshangdianzhihou,tajiunengxifulizi,congernenghenhaodizhudian。
結果表明,納米牧場的貯電能力是單個氧化錳的貯電能力的10bei,suozhubeidedianliangshixianyouchaojidianrongqisuoshiyongdetandianjidezhudianliangdeerbei。zhanghaobiaoshi,erqie,namimuchangdefuzajiegoukeyididangjixiexingnengdetuihua,congerbimianchaojidianrongqidexingnengsuishijiandeguoquerxiajiang。ceshijieguobiaoming,cixinzhuangzhidezhudiannenglizaichongdianhehaodian2萬次循環之後僅僅下降了3%,勝過其它高性能的設計。
英國曼徹斯特大學的邁克·baensibiaoshi,zheshiyizhongtishengchaojidianrongqixingnengdeyouqubanfa。danzaishangshixiaoshouzhiqianhaiderangtagengnengjingshouwulifangmiandetuihua,yejiushigengnengnaiyong。yidanzhezhongchaojidianrongqiyongyudiandongqicheshang,caishachedetongshijiunengchongmandian。ruguozaichengshixingshidehua,1小時充電大約60次就可以了。