In-Situ Scanning Electron Microscope Observations of Strain-Confined Lithium Nucleation at Electrode/Electrolyte Interfa
- PDF / 247,999 Bytes
- 6 Pages / 432 x 648 pts Page_size
- 37 Downloads / 244 Views
		    In-Situ6FDQQLQJ(OHFWURQ0LFURVFRSH2EVHUYDWLRQVRI6WUDLQ&RQILQHG/LWKLXP 1XFOHDWLRQDW(OHFWURGH(OHFWURO\WH,QWHUIDFHVLQ$OO6ROLG6WDWH/LWKLXP%DWWHU\  0XQHND]X0RWR\DPD0DNRWR(MLULDQG@,QRUJDQLFVROLGHOHFWURO\WH FDQEORFN/LGHQGULWHJURZWKHYHQLI/LPHWDOLVXVHGDVWKHDQRGH8QGRXEWHGO\WKLVIHDWXUHLV TXLWH DWWUDFWLYH EHFDXVH WKH WKHRUHWLFDO VSHFLILF FDSDFLW\ RI /L PHWDO DQRGH  $K NJí  LV PXFKJUHDWHUWKDQWKDWRIJUDSKLWHDQRGH$KNJí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
 
 25
 
  UHSRUWVRQWKHJURZWKDQGGLVVROXWLRQRI/LLVODQGVZKLVNHUVWKURXJKVROLGHOHFWURO\WHLQWHUIDFHV FRDWHGZLWKD&XFXUUHQWFROOHFWRUXVLQJin-situVFDQQLQJHOHFWURQPLFURVFRS\6(0   (;3(5,0(17$/   )LJXUH  VKRZV D WZR HOHFWURGHW\SHHOHFWURFKHPLFDO FHOO IRU in-situ 6(0 REVHUYDWLRQ 7KH PDMRULW\ RI WKH HOHFWURO\WH  FP î FP  LV D PLUURUSROLVKHG /L$O7L32  /$73  VKHHW 2+$5$ &R  ZLWK D WKLFNQHVV RI  ȝP  ,W ZDV VXEVHTXHQWO\ FRDWHG ZLWK /L321OD\HUVZLWKWKLFNQHVVHVRIȝPRQWKHXSSHUDQGERWWRPVXUIDFHVE\UDGLRIUHTXHQF\ 5) PDJQHWURQVSXWWHULQJ7KHGHWDLOVDUHGHVFULEHGHOVHZKHUH>@7KHZRUNLQJHOHFWURGH LVD&XILOPGHSRVLWHGRQWRDFLUFXODUDUHDZLWKDGLDPHWHURIPPLQWKHFHQWHURIWKH/L321 FRDWHGXSSHUVXUIDFHRIWKHHOHFWURO\WHE\SXOVHGODVHUGHSRVLWLRQ3/' &XLVDW\SLFDOFXUUHQW FROOHFWRUPDWHULDOIRUOLWKLXPLRQEDWWHU\>@7KHFRXQWHUHOHFWURGHLVD/LILOPZLWKDWKLFNQHVV RI í ȝP DQG DQ DUHD RI   î ʌ FP HYDSRUDWLRQGHSRVLWHG RQWR WKH ERWWRP RI WKH HOHFWURO\WH  7KLV WULOD\HUHG FHUDPLF HOHFWURO\WH VKHHW ZLWK WKH HOHFWURGHV LVFODPSHG ZLWK WKLFN &XDQGEUDVVSODWHVWRREWDLQHOHFWULFFRQWDFWVDVSUHVHQWHGLQ)LJ7KHUHLVDYLHZSRUWZLWKD GLDPHWHU		
Data Loading...
 
	 
	 
	 
	 
	 
	 
	 
	 
	 
	 
	