大牛Chong-Min Wang最新高电压锂电力作（Chemistry of Materials，2015年10月29日）？题目：Phosphorus Enrichment as a New Composition in the Solid Electrolyte Interphase of High-Voltage Cathodes and Its Effects on Battery Cycling 作者：Pengfei Yang?, Jianming Zheng?, Saravanan Kuppan§, Qiuyan Li?, Dongping Lv?, Jie Xiao?, Guoying Chen§, Ji-Guang Zhang*?, Chong-Min Wang*? ? ?? ?? ?? Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington 99352, United States ? ?? ?? ?? Energy and Environmental Directorate, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington 99352, United States ? ?? ?? ?§ Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States 摘要：Immersion of a solid into liquid often leads to the modification of both the structure and chemistry of surface of the solid, which subsequently affects the chemical and physical properties of the system. For the case of the rechargeable lithium ion battery, consquence of such a surface modification is termed as solid electrolyte interphase (SEI) layer, which has been perceived to play a critical role in the stable operation of the batteries. However, the structure and chemical composition of the SEI layer and its spatial distribution and dependence on the battery operating conditions remain unclear. Using aberration-corrected scanning transmission electron microscopy, coupled with ultrahigh-sensitivity energy-dispersive X-ray spectroscopy, we probed the structure and chemistry of the SEI layer on several high-voltage cathodes. We show that layer-structured cathodes, when cycled at a high cut-off voltage, can form a Phosphorus-rich SEI layer on their surface, which is a direct evidence of Li-salt (LiPF6) decomposition. Our systematical investigations indicate that such a cathode/Li-salt side reaction shows strong dependence on the structure of the cathode materials, the operating voltage, and the temperature, indicating the feasibility of SEI engineering. These findings provide valuable insights on the interaction between the high-voltage cathode and the electrolyte, as well as the interface evolution upon battery cycling. cm-2015-03510j_0008.gif查看更多0个回答 . 4人已关注
“.”点在英语中怎么读? “.” 点在英语中怎么读？ 有时读 "dot", 有时读 "point"; 还有时读 "stop" 主要区别 : 如果把它当独立意义时 , 读 "dot", 如果只是一个部分 , 读 "point", 如 : www.baidu.com: www dot baidu dot com ä: ( 德语字母 ,A 加两点 ), a German letter, two dots on A. 1.5: one point five 1.3 billion: one point three billion ( 中国人口十三亿 ) 当做 " 句号 ( 句点 )" 时 , 读 "stop"( 美国读 "period") 句号： period. 小数点： decimal point 0.00: zero point zero zero 有各种意思： 第一种、 句号： period. 第二种、 小数点： decimal point 例子： 0.00: zero point zero zero 第三种、 在数字中读 point ，表示小数点。 如果是句号的话，读 period 。 如果是网址中的点，读 dot 。 查看更多2个回答 . 5人已关注
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