The Co-B Amorphous Alloy: A High Capacity Anode Material for an Alkaline Rechargeable Battery

Qiu, Shujun; Huang, Jing‐Mei; Chu, Hailiang; Zou, Yongjin; Xiang, Cuili; Yan, Erhu; Xu, Fen; Sun, Lixian

doi:10.3390/met6110269

Cited by 7 publications

(5 citation statements)

References 31 publications

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“…Table S1 shows the elemental composition of the synthesized electrode materials. The atomic ratio of metal to boron is about 2.4, which is close to the composition of TM 2 B, similar to reported work . The metal content is a little higher due to the inevitable formation of Co(OH) 2 and Ni(OH) 2 during the synthesis process.…”

Section: Resultssupporting

confidence: 88%

New Battery with Borides as Both Anode and Cathode Materials

Zeng

Liao

et al. 2021

Energy Fuels

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Transition metal borides Co–B and Co–Ni–B are prepared by a simple chemical reduction method and used to construct a new all-boride aqueous solution battery with borides used for both the anode and cathode. This all-boride-based battery exhibits an excellent electrochemical property and extreme frost tolerance. The results of the electrochemical performance test demonstrate that the specific capacity of this all-boride battery reaches 332.4 mA h g–1 at a current density of 500 mA g–1 and is maintained at 280 mAh g–1 with a high discharge current density of 8 A g–1 as a result of the rapid electrochemical reaction kinetics and high electronic conductivity. This all-boride battery can continue to work at low temperatures (−40 °C) and exhibits good electrochemical performance; therefore, it can be used under extreme cold weather conditions. The electrode material of the all-boride battery is simple to prepare, is energy-saving, does not require special equipment or a special environment during assembly, and thus shows promise as a new energy storage device.

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Section: Resultssupporting

confidence: 88%

New Battery with Borides as Both Anode and Cathode Materials

Zeng

Liao

et al. 2021

Energy Fuels

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“…As can be seen from XRD patterns of Co-La x -B alloys shown in Fig. 1, there is a very broad diffraction peak appearing at 2θ = 45º in each pattern, indicating that the as-prepared alloys are in an amorphous structure, which agrees with the published results [3,11]. The size and the arrangement of cobalt atoms and lanthanum atoms are different and the interaction between them is also different from that between cobalt atoms.…”

Section: Resultssupporting

confidence: 87%

“…Cobalt or cobalt-based alloys were developed and used as anode materials in alkaline secondary batteries. These alloys include Co-B alloy [3], Co-Si alloy [4], Co-P alloy [5], Co-S alloy [6], Co-Si 3 N 4 alloy [7], Co-Ni-B ternary amorphous alloy [8]. The Co electrode has a very high theoretical electrochemical capacity of 909 mAh/g [6], which far surpasses that of the commercialized AB 5 -type alloys (about 330 mAh/g) [9].…”

Section: Introductionmentioning

confidence: 99%

“…In numerous cobalt-based alloys, Co-B alloys have attracted extensive attention because of their excellent electrochemical performance. The researchers have been trying to find Co-B alloys with better cycle stability, higher electrochemical capacity, and higher rate discharge-ability used as negative electrode materials for alkaline secondary batteries based on the optimization of preparation methods [11,12], the select of raw materials [3], the control of the synthesizing conditions [13] and multi-component alloying [8,14,15,16].…”

Section: Introductionmentioning

confidence: 99%

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Enhanced Electrochemical Performance of CoB Amorphous Alloy through the Addition of Lanthanum

Zhao

Liao

Qiu

et al. 2018

MSF

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In order to investigate the effect of lanthanum on the electrochemical properties of CoB amorphous alloy, Co-Lax-B alloys (x = 0, 0.1, 0.5, and 1) were prepared by chemical reduction method. As negative electrodes in alkaline rechargeable batteries, Co-Lax-B alloys exhibit superior electrochemical properties. For Co-La0.1-B alloy, at the discharge current density of 100 mA/g, the initial discharge capacity is 830.6 mAh/g and the discharge capacity has remained around 317.3 mAh/g even after 100 cycles. Moreover, the high-rate discharge ability (HRD) of Co-La0.1-B alloy electrode at the discharge current density of 300 mA/g, 600 mA/g, and 900 mA/g is 98.16%, 95.17%, and 91.86%, respectively. The anodic polarization (AP) and the electrochemical impedance spectra (EIS) measurements indicate that the kinetics of electrochemical performance of the alloys is remarkably improved with the addition of lanthanum.

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“…Lithium-ion batteries (LIBs) are used for many applications, such as portable electronic devices, electric or hybrid electric vehicles, and energy storage systems (ESS), since they have many advantages compared to lead-acid batteries and nickel-cadmium batteries [1]. While material research on LIBs has been actively done to improve battery performances [2][3][4][5][6][7][8][9][10], few studies on the manufacturing process of LIBs have been done. Among the manufacturing processes, cutting of electrodes is important, because defects formed during cutting process may lead to malfunction of battery systems or battery explosion.…”

Section: Introductionmentioning

confidence: 99%

Laser Cutting Characteristics on Uncompressed Anode for Lithium-Ion Batteries

Lee

Suk

2020

Energies

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Lithium-ion batteries are actively used for many applications due to many advantages. Although electrodes are important during laser cutting, most laser cutting studies use commercially available electrodes. Thus, effects of electrodes characteristics on laser cutting have not been effectively studied. Since the electrodes’ characteristics can be manipulated in the laboratory, this study uses an uncompressed anode on laser cutting for the first time. Using the lab-made anode, this study identifies laser cutting characteristics of the uncompressed anode. First, the absorption coefficients of graphite and copper in the ultraviolet, visible, and infrared range are measured. The measured absorptivity of the graphite and copper at the wavelength of 1070 nm is 88.25% and 1.92%, respectively. In addition, cutting phenomena can be categorized in five regions: excessive cutting, proper cutting, defective cutting, excessive ablation, and proper ablation. The five regions are composed of a combination of multi-physical phenomena, such as ablation of graphite, melting of copper, evaporation of copper, and explosive boiling of copper. In addition, the top width varies in the order of 10 μm and 1 μm when applying high and low volume energy, respectively. The logarithmic relationship between the melting width and the volume laser energy was found.

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The Co-B Amorphous Alloy: A High Capacity Anode Material for an Alkaline Rechargeable Battery

Cited by 7 publications

References 31 publications

New Battery with Borides as Both Anode and Cathode Materials

New Battery with Borides as Both Anode and Cathode Materials

Enhanced Electrochemical Performance of CoB Amorphous Alloy through the Addition of Lanthanum

Laser Cutting Characteristics on Uncompressed Anode for Lithium-Ion Batteries

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