Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\28211894
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Sci+Rep
2017 ; 7
(ä): 42521
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Design of a Porous Cathode for Ultrahigh Performance of a Li-ion Battery: An
Overlooked Pore Distribution
#MMPMID28211894
Song J
; Kim J
; Kang T
; Kim D
Sci Rep
2017[Feb]; 7
(ä): 42521
PMID28211894
show ga
Typical cathode materials of Li-ion battery suffer from a severe loss in specific
capacity, and this problem is regarded as a major obstacle in the expansion of
newer applications. To overcome this, porous cathodes are being extensively
utilized. However, although it seems that the porosity in the cathode would be a
panacea for high performance of LIBs, there is a blind point in the cathode
consisting of porous structures, which makes the porous design to be a redundant.
Here, we report the importance of designing the porosity of a cathode in
obtaining ultrahigh performance with the porous design or a degraded performance
even with increase of porosity. Numerical simulations show that the cathode with
40% porosity has 98% reduction in the loss of specific capacity when compared to
the simple spherical cathode when the C-rate increases from 2.5 to 80?C. In
addition, the loss over total cycles decreases from 30% to only about 1% for the
cathode with 40% porosity under 40?C. Interestingly, however, the specific
capacity could be decreased even with the increase in porosity unless the pores
were evenly distributed in the cathode. The present analysis provides an
important insight into the design of ultrahigh performance cathodes.