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锂离子电池成为日常生活不可或缺的东西
2018-12-19

JUWAIMEIBAODAO,ELUOSISIKEERKEWOKEJIXUEYUAN(Skoltech)DEYANJIURENYUANYUELUOSIKEXUEYUANHUAXUEWULIYANJIUSUO(Institute for Problems of Chemical Physics of RAS)YIJIWULAERLIANBANGDAXUE(Ural Federal University)DEYANJIURENYUANHEZUO,ZHENGSHIKEYILIYONGYOUJICAILIAO,WUXUSHIYONGLIHUOQITAXIYOUYUANSU,ZHICHENGGAORONGLIANG、GAOGONGLVDEDIANCHI。CIWAI,YANJIURENYUANHAIZHENGMINGLEGAIYINJICAILIAOJUYOUJIGAODEWENDINGXING,ZHICHENGDEJIADIANCHICHONGFANGDIANXUNSUQIEJUYOUGAONENGLIANGMIDU。

疯狂牛牛游戏XIANZAI,LILIZIDIANCHICHENGWEIRICHANGSHENGHUOBUKEHUOQUEDEDONGXI,GUANGFANYONGYUCUNCHUNENGLIANG,YOUQISHIYONGYUBIANXIESHIDIANZICHANPIN。YOUYUDIANDONGQICHEBUDUANDEDAOFAZHAN,XIYINLEYUELAIYUEDUODETOUZI,DIANCHIDEXUQIUYEZAIJIZENG。LIRU,WOERWOJIHUADAO2025NIANJIANGDIANDONGQICHEXIAOLIANGZHANZONGXIAOLIANGDEBILITIGAOZHI50%,ERDAIMULEXUANBUJIANGTINGZHIYANFANEIRANJI,ZHONGDIANZHUANXIANGDIANDONGQICHE。

不过,大量使用锂离子电池疯狂牛牛游戏会使生产锂离子电池所需的资源面临严重短缺。钴、镍和锰等过渡性金属通常用于制造电池阴极,相当稀有、昂贵,而且有毒。有少数几个国家在生产大多数不是很常见的锂,但全球范围内的锂供应量太少,无法让所有传统汽车都被由锂电池提供动力的电动汽车所取代。据德国能源经济研究中心(FFE)估计,在未来几十年内,锂金属短缺可能会变成一个严重的问题。最近,科学家们都提出建议,寻找钠和钾等其他替代品,此类金属在化学特性上与锂相似。

SIKEERKEWOKEJIXUEYUANDEYANJIURENYUANZAIPavel TroshinJIAOSHOUDEDAILINGXIA,ZAIYANFAJIYUYOUJIYINJICAILIAODENAHEJIADIANCHIFANGMIANQUDELEHENDADEJINZHAN。

研究人员们在第一篇论文中提到一种含有六氮杂苯并菲(hexaazatriphenylene)碎片的聚合物。事实证明,该新材料同样适用于锂电池、钠电池和钾电池,充电时间为30至60秒,在经历数千次的充放电循环后仍能够保持储能能力。该论文的第一作者兼Skoltech的博士生Roman Kapaev解释道:“多功能性是有机材料的关键优势之一,相对于反离子的特性,它们的氧化还原反应机制没有那么明显,因而更容易找到锂离子电池的替代品。随着锂的价格不断上涨,用更便宜的、永远用不完的钠或钾来代替锂是合理的。至于无机材料,情况会变得更加复杂。”

LIUDANZABENBINGFEIJUHEWUYINJIDEQUEDIANSHIGONGZUODIANWEIJIAODI(XIANGDUIYUK+/KDIANWEIYUEWEI1.6V),DAOZHICHUNENGNENGLIXIAJIANG。YINER,YANJIURENMENZAIDIERPIANLUNWENZHONGTIDAOLELINGYIZHONGCAILIAO,YIZHONGJIYUERQINGBENNEIJINAN(dihydrophenazine)DEJUHEWU,MEIYOUGONGZUODIANWEIJIAODIDEQUEDIAN,KEYIQUEBAODIANCHIDEPINGJUNGONGZUODIANYAZENGJIAZHI3.6V。GAILUNWENDEDIYIZUOZHEJIANSkoltechDEBOSHISHENGPhilipp ObrezkovJIESHIBIAOSHI:“FANGXIANGZUJUHEWUKEZHICHENGYOULIANGDEGAOYAYOUJIYINJI,YONGYUJINSHULIZIDIANCHI。ZAICICIYANJIUZHONG,WOMENSHOUCIZAIJIADIANCHIYINJIZHONGSHIYONGLEDUODANBENJI5,10ERQINGBENNEIJINAN。TONGGUOCHEDIYOUHUADIANJIEZHI,DADAOLE593 W×h/kgDEBINENG,SHIMUQIANSUOZHIDESUOYOUJIALIZIDIANCHIYINJISUODADAODEZUIGAOBINENG。”

疯狂牛牛游戏JINSHULIZIDIANCHIJUYOUDEZHUYAOWENTIZHIYISHIHUISHENGZHANGJINSHUZHIJING,YOUQISHIPEIBEIJINSHUYANGJIDEDIANCHI。JINSHUZHIJINGZHANGDAODIANCHIXINZHONGHUIDAOZHIDUANLU,TONGCHANGHAIHUIYINQIHUOZAISHENZHIBAOZHA。WEIBIMIANCIZHONGQINGKUANG,KEYICAIYONGHEJINDAITICHUNJIANJINSHU,YINWEIHEJINZAIDIANCHIGONGZUOWENDUXIASHIYETAIDE,ZHEIYESHI2019NIANNUOBEIERJIANGDEZHUJohn B. GoodenoughSUOTICHUDEGUANDIAN。JIANAHEJINDERONGDIANDI,WEILINGXIA12.7SHESHIDU,NAHANLIANGYUEWEI22%。

ZAIDISANCIYANJIUZHONG,KEXUEJIAMENZAITANZHISHANGSHIYONGLELEISIDENAJIAHEJIN,ZUOWEIDIANCHIDEYANGJI,ERZHIQIANSUOYANFADEYANGHUAHAIYUANHUOXINGJUHEWUZUOWEIYINJI。JUSHUO,CILEIDIANCHIKEYIZAI10MIAODESHIJIANNEIWANCHENGCHONGFANGDIAN。YOUQUDESHI,QIZHONGYIZHONGJUHEWUYINJISHIJIADIANCHIDADAOLEZUIGAONENGLIANGRONGLIANG,ERLINGYIZHONGYINJIRANGJIADIANCHIJUBEIJIHAODEWENDINGXING,ZAI1WANCICHONGFANGDIANXUNHUANHOU,ZHISUNSHILE11%DERONGLIANG。CIWAI,JIYUCILIANGZHONGCAILIAOZHICHENGDEDIANCHIDOUXIANSHILEWUYULUNBIDEGONGLVTEXING,JIEJIN100,000 W/kg,DADAOLECHAOJIDIANRONGQIDEGONGLVSHUIPING。



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