²é¿´: 1695  |  »Ø¸´: 6
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

ParkerÒ»°à

ľ³æ (ÕýʽдÊÖ)

ˮţÉú̬ѧ¼Ò

[½»Á÷] ´óÅ£Marnix Wagemaker×îÐÂ﮵çÁ¦×÷£¨Nature Communications£¬2015Äê9ÔÂ28ÈÕ£© ÒÑÓÐ5È˲ÎÓë

ÌâÄ¿£ºDirect view on the phase evolution in individual LiFePO4 nanoparticles during Li-ion battery cycling

×÷ÕߣºXiaoyu Zhang1, Martijn van Hulzen1, Deepak P. Singh1, Alex Brownrigg2, Jonathan P. Wright2, Niels H. van Dijk1 & Marnix Wagemaker1
         1 Department of Radiation Science and Technology, Delft University of Technology, Mekelweg 15, 2629JB Delft, The Netherlands.
         2 European Synchrotron Radiation Facility, 6 rue Jules Horowitz, BP 220, 38043 Grenoble Cedex, France.

ÕªÒª£ºPhase transitions in Li-ion electrode materials during (dis)charge are decisive for battery performance, limiting high-rate capabilities and playing a crucial role in the cycle life of Li-ion batteries. However, the difficulty to probe the phase nucleation and growth in individual grains is hindering fundamental understanding and progress. Here we use synchrotron microbeam diffraction to disclose the cycling rate-dependent phase transition mechanism within individual particles of LiFePO4, a key Li-ion electrode material. At low (dis)charge rates well-defined nanometer thin plate-shaped domains co-exist and transform much slower and concurrent as compared with the commonly assumed mosaic transformation mechanism. As the (dis)charge rate increases phase boundaries become diffuse speeding up the transformation rates of individual grains. Direct observation of the transformation of individual grains reveals that local current densities significantly differ from what has previously been assumed, giving new insights in the working of Li-ion battery electrodes and their potential improvements.´óÅ£Marnix Wagemaker×îÐÂ﮵çÁ¦×÷£¨Nature Communications£¬2015Äê9ÔÂ28ÈÕ£©
Wagemaker.jpg
»Ø¸´´ËÂ¥

» ±¾Ìû¸½¼þ×ÊÔ´Áбí

  • »¶Ó­¼à¶½ºÍ·´À¡£ºÐ¡Ä¾³æ½öÌṩ½»Á÷ƽ̨£¬²»¶Ô¸ÃÄÚÈݸºÔð¡£
    ±¾ÄÚÈÝÓÉÓû§×ÔÖ÷·¢²¼£¬Èç¹ûÆäÄÚÈÝÉæ¼°µ½ÖªÊ¶²úȨÎÊÌ⣬ÆäÔðÈÎÔÚÓÚÓû§±¾ÈË£¬Èç¶Ô°æÈ¨ÓÐÒìÒ飬ÇëÁªÏµÓÊÏ䣺xiaomuchong@tal.com
  • ¸½¼þ 1 : Wagemaker_Nature_Communications_2015.pdf
  • 2015-09-28 02:32:05, 744.71 K

» ÊÕ¼±¾ÌûµÄÌÔÌûר¼­ÍƼö

﮵ç×ÊÔ´¹²Ïí ÄÉÃ×¼¼ÊõÓëÄÜÔ´¼°Ä£Äâ

» ²ÂÄãϲ»¶

ÔçÆðµÄ²ËÄñÓв˳Ô
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
4Â¥2015-09-29 08:14:48
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 7 ¸ö»Ø´ð
6Â¥2018-05-30 15:17:27
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
7Â¥2018-05-30 15:17:43
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 085600²ÄÁÏÓ뻯¹¤µ÷¼Á +9 A-¶ßÀ²ZÃÎ 2026-03-23 15/750 2026-03-25 11:18 by Ainin_
[¿¼ÑÐ] 292Çóµ÷¼Á +4 ¶ì¶ì¶ì¶î¶î¶î¶î¶ 2026-03-25 4/200 2026-03-25 10:37 by barlinike
[¿¼ÑÐ] 318Çóµ÷¼Á +5 plumÀî×Ó 2026-03-21 8/400 2026-03-25 09:26 by aa331100
[¿¼ÑÐ] 340Çóµ÷¼Á +5 »°Ã·ÌÇ111 2026-03-24 5/250 2026-03-25 06:53 by ilovexiaobin
[¿¼ÑÐ] 281Çóµ÷¼Á +3 Koxui 2026-03-24 4/200 2026-03-24 22:59 by barlinike
[Óлú½»Á÷] ÓлúºÏ³ÉÇóÖú 20+3 FENGSHUJEI 2026-03-23 5/250 2026-03-24 19:31 by 88817753
[¿¼ÑÐ] ÊÕ08µ÷¼ÁÉú +6 komorebi69 2026-03-18 6/300 2026-03-24 19:09 by Íô£¡£¿£¡
[¿¼ÑÐ] 306Çó0703µ÷¼ÁÒ»Ö¾Ô¸»ªÖÐʦ·¶ +10 Ö½Óãly 2026-03-21 11/550 2026-03-24 17:22 by qingfeng258
[¿¼ÑÐ] 080500Çóµ÷¼Á +3 zzzzfan 2026-03-24 3/150 2026-03-24 16:38 by barlinike
[¿¼ÑÐ] 307Çóµ÷¼Á +5 ³¬¼¶ÒÁ°º´óÍõ 2026-03-24 5/250 2026-03-24 15:46 by ÐÇ¿ÕÐÇÔÂ
[²ÄÁϹ¤³Ì] Ò»Ö¾Ô¸C9²ÄÁÏÓ뻯¹¤×¨Òµ×Ü·Ö300Çóµ÷¼Á +4 Âü111 2026-03-24 5/250 2026-03-24 15:44 by ÐÇ¿ÕÐÇÔÂ
[¿¼ÑÐ] 085404µç×ÓÐÅÏ¢284·ÖÇóµ÷¼Á +4 13659058978 2026-03-24 4/200 2026-03-24 12:15 by syl20081243
[¿¼ÑÐ] Ò»Ö¾Ô¸ÄϾ©Àí¹¤´óѧ085701×ÊÔ´Óë»·¾³302·ÖÇóµ÷¼Á +5 ¿ûè÷ÎÀ¶Ó 2026-03-18 7/350 2026-03-23 16:26 by lingjue
[¿¼ÑÐ] Çóµ÷¼ÁԺУÐÅÏ¢ +6 CX 330 2026-03-21 6/300 2026-03-22 15:25 by ÎÞи¿É»÷111
[¿¼ÑÐ] Ò»Ö¾Ô¸ÖØÇì´óѧ085700×ÊÔ´Óë»·¾³×¨Ë¶£¬×Ü·Ö308Çóµ÷¼Á +3 īīĮ 2026-03-18 3/150 2026-03-21 00:39 by JourneyLucky
[¿¼ÑÐ] Çóµ÷¼ÁÒ»Ö¾Ô¸ÄϾ©º½¿Õº½Ìì´óѧ289·Ö +3 @taotao 2026-03-19 3/150 2026-03-20 21:34 by JourneyLucky
[¿¼ÑÐ] Çóµ÷¼Á +3 @taotao 2026-03-20 3/150 2026-03-20 19:35 by JourneyLucky
[¿¼ÑÐ] ²ÄÁÏѧ˶318Çóµ÷¼Á +5 February_Feb 2026-03-19 5/250 2026-03-19 23:51 by 23Postgrad
[¿¼ÑÐ] ²ÄÁÏ¿¼Ñе÷¼Á +3 xwt¡£ 2026-03-19 3/150 2026-03-19 11:22 by wãåÑôw
[¿¼ÑÐ] ±¾¿ÆÖ£ÖÝ´óѧÎïÀíѧԺ£¬Ò»Ö¾Ô¸»ª¿Æ070200ѧ˶£¬346Çóµ÷¼Á +4 ÎÒ²»ÊÇÒ»¸ù´Ð 2026-03-18 4/200 2026-03-19 09:11 by ¸¡ÔÆ166
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û