TY - JOUR
T1 - Design and preparation of thin film gel polymer electrolyte for 3D Li-ion battery
AU - Tolganbek, Nurbol
AU - Mentbayeva, Almagul
AU - Serik, Nurassyl
AU - Batyrgali, Nursaule
AU - Naizakarayev, Miras
AU - Kanamura, Kiyoshi
AU - Bakenov, Zhumabay
N1 - Funding Information:
This research was supported by the research grants #021220CRP0122 “Development of highly sensitive MOS based nano-film gas sensors” and #091019CRP2114 “Three-dimensional all solid state rechargeable batteries” from Nazarbayev University. Authors thank Core Facilities of Nazarbayev University for access to laboratory equipment.
Publisher Copyright:
© 2021 The Authors
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/5/1
Y1 - 2021/5/1
N2 - Three-dimensional (3D) configuration of the battery provides a large active surface area of the electrodes to store and utilize more active material, enabling remarkable increase of capacity. Herein, we report on the development of a full 3D battery composed of Ni3Sn4 (Ni–Sn) alloy electrodeposited onto a nickel foam current collector to form a 3D anode, which was coated with a polymer electrolyte-separator film, and LiFePO4/CNT cathode filled into the voids of the resulting 3D structure. An ultrathin polymer coating on the 3D anode was obtained via layer-by-layer technique. The X-ray diffraction investigations confirmed stability of the structure of the anode prior and after the polymer coating, while top and cross-section SEM images proved the uniformity of both the deposited 3D anode and the polymer coating on its surface. It was shown that a thin homogeneous layer of polymer can be obtained on 3D structured anode. This film effectively performed as a gel-like electrolyte in a full 3D battery. Cyclic voltammetry and charge-discharge tests exhibited stable electrochemical response and cyclability of the 3D battery. The prepared full 3D battery successfully operated at 0.1C rate and retained 90% of its initial capacity over 100 galvanostatic charge-discharge cycles.
AB - Three-dimensional (3D) configuration of the battery provides a large active surface area of the electrodes to store and utilize more active material, enabling remarkable increase of capacity. Herein, we report on the development of a full 3D battery composed of Ni3Sn4 (Ni–Sn) alloy electrodeposited onto a nickel foam current collector to form a 3D anode, which was coated with a polymer electrolyte-separator film, and LiFePO4/CNT cathode filled into the voids of the resulting 3D structure. An ultrathin polymer coating on the 3D anode was obtained via layer-by-layer technique. The X-ray diffraction investigations confirmed stability of the structure of the anode prior and after the polymer coating, while top and cross-section SEM images proved the uniformity of both the deposited 3D anode and the polymer coating on its surface. It was shown that a thin homogeneous layer of polymer can be obtained on 3D structured anode. This film effectively performed as a gel-like electrolyte in a full 3D battery. Cyclic voltammetry and charge-discharge tests exhibited stable electrochemical response and cyclability of the 3D battery. The prepared full 3D battery successfully operated at 0.1C rate and retained 90% of its initial capacity over 100 galvanostatic charge-discharge cycles.
KW - 3D battery
KW - Anode
KW - Gel electrolyte
KW - Layer-by-layer assembly (LbL)
KW - Lithium-ion battery (LIB)
KW - Ni–Sn alloy
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U2 - 10.1016/j.jpowsour.2021.229686
DO - 10.1016/j.jpowsour.2021.229686
M3 - Article
AN - SCOPUS:85101713305
SN - 0378-7753
VL - 493
JO - Journal of Power Sources
JF - Journal of Power Sources
M1 - 229686
ER -