Mabhatiri eLithium akachinja nharembozha midziyo yemagetsi uye anoshandiswa mumidziyo mitsva yesimba, asi kumwe kuvandudzwa kwehupenyu nesimba kunoda matekinoroji matsva. Imwe sarudzo ndeye lithium simbi mabhatiri, ane hupenyu hwakareba hwebhatiri uye nekukurumidza kuchaja kumhanya, asi kune matambudziko neiyi tekinoroji. Lithium deposits, inonzi dendrites, inowanzokura pane anode uye inogona kugadzira dunhu pfupi, zvichikonzera kutadza kwebhatiri, moto kana kuputika.

Parizvino, vatsvakurudzi vanobva kuInstitute of Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, uye China High Pressure Science uye Technology Research Center vakagadzira membrane separator inobva pane carbon allotropes. Inonzi graphene, iyo inoshanda se lithium ion sefa kudzivirira dendritic kukura [Shangetal. Material.10(2018) 191-199].

Lithium simbi mabhatiri akafanana nepfungwa kune lithium mabhatiri, asi vimba ne lithium simbi anode. Munguva yekuburitsa, iyo lithium anode inopa ma electrons kune cathode kuburikidza nekunze kwedunhu. Nekudaro, kana ichichaja, lithium inoiswa pane anode. Muchiitiko ichi, dendrites isingadiwi ichaumba.

Iri ndiro basa re diaphragm. Iyo membrane separator yakagadzirwa ne-ultra-thin (10nm) graphite diacetylene (two-dimensional hexagonal kabhoni atomu monolayer yakabatana ne succinic acid cheni) ine yakakosha inoshanda kukosha. Graphite diacetylene haina kungoita elasticity uye kuoma, asi chimiro chayo chemakemikari inoumba yunifomu pore network, ichibvumira chete lithium ion kuti ipfuure. Izvi zvinogadzirisa kufamba kwemaion kuburikidza ne membrane, zvichiita kuti ioni iwedzere kufanana. Zvinonyanya kukosha, hunhu uhwu hunonyatso kurambidza kukura kwe lithium dendrites.

Li Yuliang weInstitute of Chemistry yeChinese Academy of Sciences, uyo akatungamirira tsvakurudzo, akatsanangura kuti lithium dendrites inogona kudzikamisa iyo yakasimba electrolyte interface, nokudaro kuwedzera hupenyu hwechigadzirwa uye simba reCoulomb. Dzivirira semuti mupfupi wedunhu uye usvike bhatiri zvakachengeteka.

Vatsvakurudzi vanotenda kuti mafirimu e-graphene-diethyne anogona kukunda mamwe ematambudziko ane minzwa anotarisana nemabhatiri e-lithium uye mamwe mabhatiri e-alkaline metal.

Li akati graphitic diacetylene ndeye getter zvinhu zvine hyper-conjugated chimiro, inherent bhendi gap, yakasikwa macroporous chimiro uye semiconductor basa. Inopa tarisiro huru yekugadzirisa matambudziko makuru esainzi munharaunda iyi.

Maviri-dimensional data zvakare iri nyore kwazvo, uye iri nyore kuwana pasi pezvakajairwa marabhoritari mamiriro.

Vatsvakurudzi vakaudza vatori venhau kuti kunyange zvazvo basa rakawanda richida kuitwa kuvandudza kunaka kwemafirimu e-graphite-diacetylene pamwero mukuru, tinotenda kuti graphite-diacetylene inogona kukanganisa zvakanyanya pakuchengetedzwa kwemabhatiri e-lithium.