4,其脫/嵌鋰平臺(tái)約為0.8V,實(shí)際比容量高于200 mAh/g,既可以避免析鋰的發(fā)生, 又不會(huì)導(dǎo)致電池能量密度過低,且倍率性能良好,利用該材料有望發(fā)展出一種電動(dòng)車用安全的快速充電動(dòng)力電池。本工作總結(jié)了鈦酸銪鋰(LiEuTiO4)負(fù)極材料的研究現(xiàn)狀,包括分子結(jié)構(gòu)、儲(chǔ)鋰機(jī)制、制備方法及亟待解決的問題,指出進(jìn)一步的研究方向。"/>

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快速充電鋰離子電池LiEuTiO4負(fù)極材料研究進(jìn)展
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1.佛山科學(xué)技術(shù)學(xué)院;2.清華大學(xué)

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科技部國(guó)際合作項(xiàng)目(2019YFE010186);國(guó)家自然科學(xué)基金 (U1564205);北京市項(xiàng)目(YETP0157);廣東省科技廳重點(diǎn)項(xiàng)目(2016GCZX008)


Progress of LiEuTiO4 for Anode Materials in Lithium-ion Batteries with Fast Charging
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1.Foshan University;2.Tsinghua University,Beijing

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    摘要:

    隨著電動(dòng)車產(chǎn)業(yè)的快速發(fā)展,鋰離子電池的安全問題和快速充電問題越來越受到關(guān)注。石墨作為商業(yè)化已久的鋰離電池負(fù)極材料,因其析鋰平臺(tái)近乎于零,而存在因負(fù)極析鋰而短路的巨大安全隱患,因而不適用于快速充電的鋰離子電池負(fù)極材料。具有層狀鈣鈦礦結(jié)構(gòu)LiEuTiO4,其脫/嵌鋰平臺(tái)約為0.8V,實(shí)際比容量高于200 mAh/g,既可以避免析鋰的發(fā)生, 又不會(huì)導(dǎo)致電池能量密度過低,且倍率性能良好,利用該材料有望發(fā)展出一種電動(dòng)車用安全的快速充電動(dòng)力電池。本工作總結(jié)了鈦酸銪鋰(LiEuTiO4)負(fù)極材料的研究現(xiàn)狀,包括分子結(jié)構(gòu)、儲(chǔ)鋰機(jī)制、制備方法及亟待解決的問題,指出進(jìn)一步的研究方向。

    Abstract:

    With the rapid development of electric vehicle industry, the safety and fast charging of lithium ion batteries have attracted more and more attention. Graphite, as commercial anode material for lithium-ion batteries, has a great potential safety hazard of internal short-circuit caused by the lithium plating due to the low intercalationSpotential (~0 V), and is not suitable for fast charging batteries. LiEuTiO4 with a layered perovskite structure has intercalationSpotential of about 0.8 V and actual capacity of over 200 mAh/g, which can avoid the occurrence of lithium plating and will keep high energy density and rate performance, thus hopefully become the ideal anode for safe fast-charging power battery for electric vehicles. In this paper, the current research status of LiEuTiO4 is summarized, including molecular structure, lithium-storage mechanism, preparation method and problems to be solved, etc.

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趙紅,王莉,何向明.快速充電鋰離子電池LiEuTiO4負(fù)極材料研究進(jìn)展[J].稀有金屬材料與工程,2020,49(11):3998~4004.[Zhao Hong, Wang Li, He Xiang-ming. Progress of LiEuTiO4 for Anode Materials in Lithium-ion Batteries with Fast Charging[J]. Rare Metal Materials and Engineering,2020,49(11):3998~4004.]
DOI:10.12442/j. issn.1002-185X.20190959

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  • 收稿日期:2019-11-15
  • 最后修改日期:2019-11-29
  • 錄用日期:2019-12-04
  • 在線發(fā)布日期: 2020-12-09
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