Novel Cathode Materials for Na-Ion Batteries Composed of Spoke-Like Nanorods of Na[Ni_0.61Co_0.12Mn_0.27]O₂ Assembled in Spherical Secondary Particles (2024)

Hwang, J. Y., Myung, S. T., Yoon, C. S., Kim, S. S., Aurbach, D., & Sun, Y. K. (2016). Novel Cathode Materials for Na-Ion Batteries Composed of Spoke-Like Nanorods of Na[Ni0.61Co0.12Mn0.27]O2 Assembled in Spherical Secondary Particles. Advanced Functional Materials, 26(44), 8083-8093. https://doi.org/10.1002/adfm.201603439

Hwang, Jang Yeon ; Myung, Seung Taek ; Yoon, Chong Seung et al. / Novel Cathode Materials for Na-Ion Batteries Composed of Spoke-Like Nanorods of Na[Ni0.61Co0.12Mn0.27]O2 Assembled in Spherical Secondary Particles. In: Advanced Functional Materials. 2016 ; Vol. 26, No. 44. pp. 8083-8093.

@article{999d10ab02f749b5b06507e4924148e4,

title = "Novel Cathode Materials for Na-Ion Batteries Composed of Spoke-Like Nanorods of Na[Ni0.61Co0.12Mn0.27]O2 Assembled in Spherical Secondary Particles",

abstract = "The development of high-energy and high-power density sodium-ion batteries is a great challenge for modern electrochemistry. The main hurdle to wide acceptance of sodium-ion batteries lies in identifying and developing suitable new electrode materials. This study presents a composition-graded cathode with average composition Na[Ni0.61Co0.12Mn0.27]O2, which exhibits excellent performance and stability. In addition to the concentration gradients of the transition metal ions, the cathode is composed of spoke-like nanorods assembled into a spherical superstructure. Individual nanorod particles also possess strong crystallographic texture with respect to the center of the spherical particle. Such morphology allows the spoke-like nanorods to assemble into a compact structure that minimizes its porosity and maximizes its mechanical strength while facilitating Na+-ion transport into the particle interior. Microcompression tests have explicitly verified the mechanical robustness of the composition-graded cathode and single particle electrochemical measurements have demonstrated the electrochemical stability during Na+-ion insertion and extraction at high rates. These structural and morphological features contribute to the delivery of high discharge capacities of 160 mAh (g oxide)−1 at 15 mA g−1 (0.1 C rate) and 130 mAh g−1 at 1500 mA g−1 (10 C rate). The work is a pronounced step forward in the development of new Na ion insertion cathodes with a concentration gradient.",

keywords = "cathode materials, concentration gradients, robust cathodes, sodium ion batteries",

author = "Hwang, {Jang Yeon} and Myung, {Seung Taek} and Yoon, {Chong Seung} and Kim, {Sung Soo} and Doron Aurbach and Sun, {Yang Kook}",

note = "Publisher Copyright: {\textcopyright} 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2016",

month = nov,

day = "22",

doi = "10.1002/adfm.201603439",

language = "English",

volume = "26",

pages = "8083--8093",

journal = "Advanced Functional Materials",

issn = "1616-301X",

publisher = "Wiley-VCH Verlag",

number = "44",

}

Hwang, JY, Myung, ST, Yoon, CS, Kim, SS, Aurbach, D & Sun, YK 2016, 'Novel Cathode Materials for Na-Ion Batteries Composed of Spoke-Like Nanorods of Na[Ni0.61Co0.12Mn0.27]O2 Assembled in Spherical Secondary Particles', Advanced Functional Materials, vol. 26, no. 44, pp. 8083-8093. https://doi.org/10.1002/adfm.201603439

Novel Cathode Materials for Na-Ion Batteries Composed of Spoke-Like Nanorods of Na[Ni0.61Co0.12Mn0.27]O2 Assembled in Spherical Secondary Particles. / Hwang, Jang Yeon; Myung, Seung Taek; Yoon, Chong Seung et al.
In: Advanced Functional Materials, Vol. 26, No. 44, 22.11.2016, p. 8083-8093.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Novel Cathode Materials for Na-Ion Batteries Composed of Spoke-Like Nanorods of Na[Ni0.61Co0.12Mn0.27]O2 Assembled in Spherical Secondary Particles

AU - Hwang, Jang Yeon

AU - Myung, Seung Taek

AU - Yoon, Chong Seung

AU - Kim, Sung Soo

AU - Aurbach, Doron

AU - Sun, Yang Kook

N1 - Publisher Copyright:© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2016/11/22

Y1 - 2016/11/22

N2 - The development of high-energy and high-power density sodium-ion batteries is a great challenge for modern electrochemistry. The main hurdle to wide acceptance of sodium-ion batteries lies in identifying and developing suitable new electrode materials. This study presents a composition-graded cathode with average composition Na[Ni0.61Co0.12Mn0.27]O2, which exhibits excellent performance and stability. In addition to the concentration gradients of the transition metal ions, the cathode is composed of spoke-like nanorods assembled into a spherical superstructure. Individual nanorod particles also possess strong crystallographic texture with respect to the center of the spherical particle. Such morphology allows the spoke-like nanorods to assemble into a compact structure that minimizes its porosity and maximizes its mechanical strength while facilitating Na+-ion transport into the particle interior. Microcompression tests have explicitly verified the mechanical robustness of the composition-graded cathode and single particle electrochemical measurements have demonstrated the electrochemical stability during Na+-ion insertion and extraction at high rates. These structural and morphological features contribute to the delivery of high discharge capacities of 160 mAh (g oxide)−1 at 15 mA g−1 (0.1 C rate) and 130 mAh g−1 at 1500 mA g−1 (10 C rate). The work is a pronounced step forward in the development of new Na ion insertion cathodes with a concentration gradient.

AB - The development of high-energy and high-power density sodium-ion batteries is a great challenge for modern electrochemistry. The main hurdle to wide acceptance of sodium-ion batteries lies in identifying and developing suitable new electrode materials. This study presents a composition-graded cathode with average composition Na[Ni0.61Co0.12Mn0.27]O2, which exhibits excellent performance and stability. In addition to the concentration gradients of the transition metal ions, the cathode is composed of spoke-like nanorods assembled into a spherical superstructure. Individual nanorod particles also possess strong crystallographic texture with respect to the center of the spherical particle. Such morphology allows the spoke-like nanorods to assemble into a compact structure that minimizes its porosity and maximizes its mechanical strength while facilitating Na+-ion transport into the particle interior. Microcompression tests have explicitly verified the mechanical robustness of the composition-graded cathode and single particle electrochemical measurements have demonstrated the electrochemical stability during Na+-ion insertion and extraction at high rates. These structural and morphological features contribute to the delivery of high discharge capacities of 160 mAh (g oxide)−1 at 15 mA g−1 (0.1 C rate) and 130 mAh g−1 at 1500 mA g−1 (10 C rate). The work is a pronounced step forward in the development of new Na ion insertion cathodes with a concentration gradient.

KW - cathode materials

KW - concentration gradients

KW - robust cathodes

KW - sodium ion batteries

UR - http://www.scopus.com/inward/record.url?scp=84989221542&partnerID=8YFLogxK

U2 - 10.1002/adfm.201603439

DO - 10.1002/adfm.201603439

M3 - Article

AN - SCOPUS:84989221542

SN - 1616-301X

VL - 26

SP - 8083

EP - 8093

JO - Advanced Functional Materials

JF - Advanced Functional Materials

IS - 44

ER -

Hwang JY, Myung ST, Yoon CS, Kim SS, Aurbach D, Sun YK. Novel Cathode Materials for Na-Ion Batteries Composed of Spoke-Like Nanorods of Na[Ni0.61Co0.12Mn0.27]O2 Assembled in Spherical Secondary Particles. Advanced Functional Materials. 2016 Nov 22;26(44):8083-8093. doi: 10.1002/adfm.201603439