边锋游戏

低成本多功能隔膜有望大幅提高锂电寿命
发布时间:2019-03-18 16:52:00
关键词:动力电池 锂电池

低成本多功能隔膜有望大幅提高锂电寿命


电动汽车要想真正普及,对锂离子电池的使用寿命要求很高,几乎维持在10年左右。在本文中,以色列科学家DoronAurbach等人综述了自2016年以来,多功能隔膜材料对电池中锰元素的溶解抑制进展,以及对锂离子电池性能衰减的最新认识。一般来说,多功能隔膜(MFSs)可捕获锰离子、清除电池中的酸性组分,甚至提供碱金属离子,从而提高电池在循环期间的容量保留率和倍率性能。在大部分多功能隔膜的文章中,正极一般为LiMn2O4 (LMO),LiNi0.6Mn0.2Co0.2O2 (NCM622)或LiNi0.5Mn1.5O4 (LNMO),负极为石墨,电解液为LiPF6/混合有机碳酸盐,常见的表征手段有XRD, ICP-OES, XANES, HR-SEM, FIB-SEM和MAS-NMR。本文不仅对多功能隔膜的当前挑战、机遇和未来进行综述,并且发布了一些较新的数据作为支撑。


QICHEDIANDONGHUASHIDANGJINQICHEYUNSHUYEDEGEMINGXINGBIANGEZHIYI,WEILESHIYINGZHEIZHONGBIANGE,LILIZIDIANCHI(LIBs)ZAIKEYUJIANDEWEILAIJIANGCHENGWEIQICHEDIANDONGHUADEZHUYAOJISHUXUANZE。YUBIANXIESHIDIANZICHANPINHEDIANWANGCUNCHUDIANCHISHICHANGZHONGDELIDIANCHIXIANGBI,DIANDONGQICHEYAOQIULIDIANCHIJUYOUGENGGAODEZHANKONGBI(JIKUANGONGZUOWENDUHEGAOCHONGFANGDIANSULV)YUNAIJIUXING(YUQISHOUMINGWEI10NIAN)FANGMIAN。YINCI,JINGUANMUQIANZAIGEZHONGZHENGFUJIHUOXINGCAILIAODEKAIFAFANGMIANQUDELEWENBUERXIANZHUDEJINZHAN。LILIZIDIANCHIZAIXINGSHILICHENGYUKUAISUCHONGDIANNENGLISHANG,RENGYOUXIANGDANGDADETIAOZHAN。JIANJINGSHIXINGLMOZHENGJIJUYOUJIAOKUANDEWENDUFANWEI、KEJIESHOUDENENGLIANGMIDU、JIAOGAODEREWENDINGXING、JIAODIDECHENGBENYIJIWUDUDENGYOUDIAN,DANCAILIAOZHONGDEMENGHENRONGYIZAIDIANJIEYEZHONGRONGJIE。


边锋游戏DIANCHICHANGJIANDESHUAIJIANMOSHIYOUSANZHONG:(1) DMDCRSHUAIJIAN,YIBANWEIGUODUJINSHU(YOUQISHIMENGLIZI)CONGZHENGJIRONGJIE,RANHOUTONGGUODIANJIEYEQIANYIBINGCHENJIDAOFUJISEISHANG;(2)CAILIAODIANHUAXUEHUOXINGHEKECHUANSHULILIZIDEJIANSHAO;(3)DIANJIEYEFENJIE,ZAIFUJIHAIYUAN,ZAIZHENGJIYANGHUA,BINGQIEBANSUIZHECHANQIXIANXIANG。ZAIZHENSHIDIANCHIZHONG,WANGWANGSANZHONGSHUAIJIANMOSHIDOUCUNZAI,WULUNZHENGJIHUOXINGCAILIAODEJIEGOUHUOZUCHENGRUHE,SUOYOULILIZIDIANCHIZHONGDOUCUNZAIJIZHI2HE3。


JINNIANLAI,KEXUEJIAMENTICHULEJIZHONGYANHUANLILIZIDIANCHIXINGNENGSHUAIJIANDEFANGFA:(1)ZAILMOJINGGEZHONGJINXINGYINYANGLIZIQUDAI,(2)MENGLIZIZUDANGCENG,(3)ZAIHUOXINGCAILIAOHUODIANJISHANGJINXINGALDTUCENG,(4)DIANJIEYETIANJIAJI,(5)JIANGDISOCFANWEI。RANER,SHISHIZHENGMING,YISHANGFANGFAJUNBUNENG100%YOUXIAO。ZAIGUOQUSHINIANLI,ZUOZHESUOZAIDEKETIZUSHEJIBINGYANJIULEYIZHONGYANHUANXINGNENGSHUAIJIANDEXINFANGFA,JIDUOGONGNENGGEMOXIUSHI。JIYUCI,BENWENHUIGUDEGONGZUOSHILILIZIDIANCHISHEJIZHONGDEGEMOZUFENJINZHAN,YUQITABUFENXIANGBI,GEMODEBIAOZHENGJIAOWEIRONGYI,KEYIZAIDIANCHICHAIXIEHOUJINXINGQINGXIBIAOZHENG,ERQIE,ZUOZHEDENGRENCAIYONGDECAILIAOJUNWEIDICHENGBENCAILIAO(DIYU3MEIYUAN/QIANKE),YINCIKEYIHENRONGYIDIJIAGONGBINGJICHENGDAOXIANYOUDEGEMOSHENGCHANXIANZHONG。



SHANGTULIEJUCHULEYIXIETONGGUOHUAXUEXIUSHIDEDAODEGONGNENGHUAGEMO,KEYIYOUXIAOZUZHIMENGRONGJIEHESUANQINGCHU,QIZHONG(a)WEI18-GUAN-6,(b)WEIaza-15-GUAN-5,(c)WEIYAANJIERYISUANERNA(IDANa2),(d)WEIMALAISUANERLI(MALi2),(e)WEIBINGXISUANLI(LiAA);(f)WEIYIERANSILI(Li4EDTA),(g)WEISHUANGBIDING(BPA),(h)WEIJUYIXIYAAN(PEI)HE(i)4-YIXIJIBIDING(4VP)。SUIRANGUANMILEIJUHEWUKEYILIANGHAODEBUHUOMENGLIZI,DANQIZAISHIJIDIANCHIZHONGDESHIYONGCHENGBENGAODELINGRENWANGERQUEBU,SHANGYONGLIZIJIAOHUANSHUZHIHEHUAHEWUDECHENGBENJIAODI,YOUWANGDAITIGUANMILEIJUHEWU。



YANJIUGEMODUIGUODUJINSHULIZIRONGJIEDEYIZHIFEICHANGYOUYIYI,RUSHANGTUSUOSHI,GEZHONGZHENGJUDOUBIAOMINGDIANJIEYEZHONGDEMENGLIZIZHUYAOWEISANJIAERBUSHIERJIA。ZHEIYIJIEGUOWULUNZAILMO//graphiteDIANCHIZHONG(J.Am. Chem. Soc., 139, 1738 (2017).),HAISHILNMO//graphiteDIANCHIZHONG(Anal. Chem., 88, 4440 (2016).),DOUSHIYOUCHONGFENZHENGJUZHENGMINGDE,ZHISHILIZIDEBILIBUTONGERYI。CIWAI,BUTONGCAILIAODUIGEZHONGGUODUJINSHULIZIDEBUHUONENGLIYEYOUZHEHENDACHAYI,YUANZESHANG,KEYIGENJULILIZIDIANCHICAIYONGDETEDINGZHENGJILAIDIAOZHENGBUHUOGEMOCAILIAODEXUANZE。ZHIDEZHUYIDESHI,CHULETMLIZIBUHUONENGLIWAI,HUAXUEXIUSHIGEMOCAILIAODESHIJISHENGCHANHAIXUYAOKAOLVQITAYINSU,BIRUYIJIAGONGXING、JIXIEXINGNENG、DIANCHIHUANJINGZHONGDENAIHUAXUEXINGHECHENGBENDENGDENG。

 

【YANJIUNEIRONG】



Doron AurbachKETIZUCESHIDELIDIANCHIYIBANWEI2023XINGNIUKOUDIANCHI(2–3 mAh)HEDANCENGRUANBAODIANCHI(50 mAh),ZHENGJIWEILMO, NCM622HUOLNMO,FUJIWEISHIMO,DIANJIEYEWEI1M LiPF6RONGYUEC/DMC/EMC,BILIYIBANWEI1:1:1HUO2:2:6 (v/v)。CAIYONGSHANGYEPPGEMOHUOZHEPVDF-HFPGEMOZUOWEIDUIZHAO,XUNHUANQIANHOUJINXINGNMRBIAOZHENG,RUSHANGTUSUOSHI,WEIDAIYOUpoly(4VP)TIANLIAODEGEMOSEMTU,KEYIKANCHUGEMOYOUDAKONGXIWANGLUOZUCHENG(TUa),ZHEIXIEDAKONGBEIPVDF-HFP(TUb)BAOWEI,DAKONGZHONGBEITUANJUDEpoly(4VP)TIANCHONG(TUc),TIANLIAOTUANJUXINGCHENGNAMIKONG(TUd)。



SHANGBIAODUIBILEBUTONGGEMOZAILMO//graphiteHENCM622//graphiteDIANCHIZHONGDEDIANHUAXUEBIAOZHENGHEMENGLIZIBUHUOXINGNENG,CONGBIAOZHONGKEYIKANDAOYIXIEHENMINGXIANDEQUSHI,BIRUZAIXUNHUANGUOCHENGZHONG,MENGBUHUOGEMODUILMO//graphiteDIANCHIRONGLIANGBAOLIULVDETIGAOQUJUEYUDIANCHICESHIWENDU。ZAI30℃SHIXUNHUAN100QUANHE30TIAN,LIBUHUOGEMODIANCHIDERONGLIANGBISHANGYEGEMOGAOCHU10%ZHI17%;ZAI55℃SHIXUNHUAN100QUANHE30TIAN,LIBUHUOGEMODIANCHIDERONGLIANGBISHANGYEGEMOGAOCHU20%ZHI38%。TONGSHI,ZAI30℃XIAXUNHUANSHI,SHIMODIANJIZHONGDEMENGHANLIANGJIANSHAO5ZHI24BEI,ZAI55℃XUNHUANSHI,JIANSHAO4ZHI21BEI。



SHANGTUaBIAOSHIZAI55℃XIALMO//graphiteHENCM622//graphiteDIANCHI(DAISHANGYEGEMOHEpoly(4VP)GEMO)DEXUNHUANSHUJU,KEYIXIANZHUDEKANCHU,CAIYONGpoly(4VP)GEMODEDIANCHIZAIXUNHUANZHONGSHILMO//graphiteDIANCHIDERONGLIANGBAOLIULVTIGAO2BEI,TONGSHIHAIJIANGSHIMODIANJISHANGCHENJIDEMENGLIANGJIANSHAOLE4.8BEI。YOUYUGAIGEMOBUBUHUOMENGLIZI,ERSHIQINGCHUSUANXINGWUZHI,YINCIGAISHUJUTIGONGLELIYONGGEMOJINXINGSUANQINGCHU,CONGERYIZHILMO//graphiteDIANCHIZHONGMENGRONGJIEDEZHIJIEZHENGJU。CIWAI,ZAIBUSHOUMENGRONGJIEYINGXIANGDENCM622//graphiteDIANCHIZHONG,poly(4VP)GEMOSHIDECHENJIZAISHIMOFUJISHANGDEMENGLIANGJINCONG167 ppmJIANSHAODAO102 ppm,JIANSHAOLE39%。


边锋游戏TUbZEJINYIBUSHUOMINGLE,SUANQINGCHUGEMOYIZHIMENGRONGJIEDEZHONGYAOXING,ZAIGAITUZHONG,JIANGCHUANTONGGEMO(PP)、SUANQINGCHUGEMO(poly(4VP))HELIANGGEMENGBUHUOGEMO(poly(IDANa2)HENa4EDTA)ZAINCM622//graphiteNIUKOUDIANCHIZHONGJINXINGDUIBI,SIZHONGGEMODERONGLIANGBAOLIULVPAIMINGWEI:PP< Na4EDTA < poly(IDANa2) << poly(4VP)。TUcHEdDUIpoly(4VP)HEPPGEMOZAILNMO//graphiteDIANCHIZHONGJINXINGCESHI,ZUOZHEFAXIAN,ZAI120QUANXUNHUANZHONG,JUYOUpoly(4VP)GEMODESANGEDIANCHIDEPINGJUNRONGLIANGSUNSHILVCONG0.01%DAO0.11%BUDENG,QIESHIMODIANJISHANGDEGUODUJINSHUNIEDELIANGJIANSHAOLE25BEI,ZHEIJIUSHISHUO,RONGLIANGBAOCHILVDEWENDINGBUSHIYOUYUMENGRONGJIEBEIDAFUDUYIZHI,ERSHITONGGUOJIANGMENGRONGJIELIANGBAOCHIZAIXINGNENGSHUAIJIANYUZHIYIXIA。



边锋游戏WEILEJIANYANDUOGONGNENGGEMOZAISHIJIDIANCHISHENGCHANZHONGDEKEXINGXING,ZUOZHEZHIZAOLESANGEpoly(IDANa2)GEMO(MFS 1-1,MFS 1-2,MFS 1-4),QIHOUDUYUSHANGYEGEMO(10HE25 μm)XIANGSI。RUSHANGTUaSUOSHI, poly(IDANa2)GEMOZAILMO//graphiteDIANCHIZHONGDERONGLIANGBAOCHILVXIANZHUGAOYUYUSHANGYEGEMODERONGLIANGBAOCHILV,JIBIANZAIXUNHUANZHONG,MFS 1-1GEMODEMENGBUHUONENGLIYIJINGBAOHE。ZAITUbHEcZHONG,KEYIKANDAOHANYOUMFS 1-1GEMODEDIANCHIZAIXUNHUANHOU,SHIMOFUJISHANGMEIYOUMENG,ZHEIQINGCHUDIBIAOMING,ZAIDIANCHIZHONG,CAIYONGDUOGONGNENGGEMOKEYITIGAORONGLIANGBAOCHILVHEYANZHANGDIANCHISHOUMING。



CONGSHANGTUZHONGKEYIKANCHU,DIANCHIZAIXUNHUAN12QUANHOU,HANYOUMFSsGEMODEDIANCHI,QISHIMODIANJIDEZUKANGBIHANYOUSHANGYEPPGEMODEDIANCHIFUJIZUKANGXIAO4DAO6BEI;TONGYANG,ZAIXUNHUAN12QUANHOU,HANYOUMFSsGEMODEDIANCHI,QILMODIANJIDEZUKANGBIHANYOUSHANGYEPPGEMODEDIANCHIZHENGJIZUKANGXIAO3BEIZUOYOU。ZUKANGDEJIANSHAOQINGCHUDIBIAOMINGLEDUOGONGNENGGEMOYOUXIAOYIZHISEIDESHENGZHANG,CONGERTIGAOLEXUNHUANGUOCHENGZHONGDEGONGLVBAOCHINENGLIHERONGLIANGLIYONGLV,HUOZHESHUO,TIGAOLEDIANCHIDEJIANKANGZHUANGTAIHENAIJIUXING。



TONGGUOSAOMIAODIANJINGSEMHEDIANZINENGPUEDXDUIXUNHUANHOUSHIMODIANJISHANGDEXIANWEIHENGJIEMIANJINXINGJIANCE,JIKEFAXIANDAOZHIZUKANGJIANGDIDEZHUYAOYUANYIN。CONGSHANGTUaHEbZHONGKEYIQINGCHUDIKANJIAN,DANGXUNHUANJIESHUHOU,SHIYONGSHANGYEGEMODEDIANCHIZHONGSHIMODIANJISHANGDESEIBISHIYONGMFS 1-1GEMODEDIANCHISHIMODIANJISHANGDESEIYAOHOUDEDUO,QIECONGTUcZHONGKEYIKANCHUSEIDEHOUDU,FENBIEWEI18μmHE30μm。CIWAI,TUcHAIJIESHILELIANGGEDIANJISHANGSEIXINGTAIDELINGWAILIANGGEZHONGYAOCHAYI,SHOUXIAN,ZAICUNZAIMFS 1-1GEMODEQINGKUANGXIA,SEIHOUDUFENBUDEFANWEIBIZAICUNZAIPPGEMODEQINGKUANGXIAYAOXIAODEDUO:FENBIEXIAOYU250 nmHEDAYU350 nm;QICI,YONGPPGEMODEDIANCHIZAIXUNHUANHOU,SHIMODIANJISHANGDESEIHENXIAO,DAYUE1%DESEIHOUDUXIAOYU50NAMI,ZHEIBIAOMINGSEIZHONGCUNZAIFEICHANGXIAOHUOFEICHANGZHAIDEQUYU(ZHENKONGHUOGOUCAO),ZHEIXIEQUYUHUIDUIDIANCHIXINGNENGZAOCHENGWENHENDATI,YINWEITAMENRONGYIFASHENGDULIXIANXIANG,BINGQIEHUICHANSHENGBUJUNYUNDEDIANLIUFENBU,ZAIDIANCHIXUNHUANGUOCHENGZHONGCHUXIANJUBUGUOCHONGDIANHEGUOFANGDIAN。

 

边锋游戏XIANGBIZHIXIA,ZAISHIYONGMFS 1-1GEMOXUNHUANDESHIMODIANJISHANG,SEIGENGJIAJINCOUHEJUNYUN。CHULEHANYOULIANGGEGEMODEDIANCHISEIYOUWULICHAYIWAI,EDX、19F-MASNMRHEFTIRJIESHIDEHUAXUEZUCHENGYECUNZAICHAYI,ZAITUeHEfZHONG,XIANSHILETUdZHONGBIAOJIYOULIANGGEHONGDIANQUYUDEEDXGUANGPU,KEYIKANCHU,LIANGGECAIYANGQUYUDEf:pBILVWANQUANBUTONG。CIWAI,CHULEYANGPINNEIBUDEBUJUNYUNXINGWAI,LIANGGEDIANJISEIZHONGDEf:pBILVYECUNZAIMINGXIANDECHAYI,MFS 1-1GEMODIANCHIZHONGSEINEIBUDEf:pBILVJIEJIN6,ZHEIBIAOMINGZAImfs 1-1GEMOCUNZAIXIA,PF6-YINLIZIBIZAIPPGEMOCUNZAIXIAGENGWENDING。

 

【JIELUNYUZHANWANG】


ZONGSHANGSUOSHU,ZUOZHEZAIWENZHONGZHENGMINGLE,DUOGONGNENGHUAXUEHUOXINGGEMOKEYIGAISHANJUYOUBUTONGGUODUJINSHUYANGHUAWUZHENGJIHESHIMOFUJIDIANCHIDEBEILVXINGNENG、RONGLIANGLIYONGLVHEBAOLIULV,BINGQIECAIYONGDEGEMOJUNWEIDICHENGBEN,WULITEXING(HOUDUHEDUOKONGXING)YEYUSHANGYEGEMOYIZHI。XINGNENGDETIGAOKEYITONGGUOGUANCHADAODEZUKANGDADAJIANGDIZHENGMING。CIWAI,DUOGONGNENGGEMOWULUNZAIGAOWENHAISHIDIWENXIA,DOUDUIGUODUJINSHULIZIDERONGJIEYOUZHEYIZHIZUOYONG,ZHISHIYOUDEGEMONENGBUHUOLIZI,YOUDELIYONGSUANQINGCHUSHIXIANYIZHI。CHULETIGAOLMO//graphiteDIANCHIDEXINGNENGWAI,SUANQINGCHUGEMOHAIKEYITIGAONMC622//graphiteHELNMO//graphiteDIANCHIDEXUNHUANRONGLIANGBAOCHILV,YINWEITAMENZHENZHENGJIEJUELEDIANJIEYEYINFADEDIANCHISHUAIJIANDEGENBENYUANYIN:DIANJIEZHIRONGYEDESUANHUA,HUIDAOZHIYUGUODUJINSHULIZIRONGJIEWUGUANDEJISHENGFANYING。YINCI,SUANQINGCHUSIHUSHIYIZHONGKEXINGDEHEGENGGUANGFANSHIYONGDECELVE,YITIGAOLILIZIDIANCHIDEXINGNENGHENAIJIUXING。


稿件来源: 能源学人
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