Evaluation of LiNiO2 with minimal cation mixing as a cathode for Li-ion batteries

Yuwono, Rio Akbar; Wang, Fuming; Wu, Nae‐Lih; Chen, Yan-Cheng; Chen, Hsi; Chen, Jin‐Ming; Lee, Jyh‐Fu; Xie, Rui-Kun; Sheu, Hwo‐Shuenn; Chang, Po‐Ya; Khotimah, Chusnul; Merinda, Laurien; Hsing, Rocan

doi:10.1016/j.cej.2022.141065

Cited by 5 publications

(5 citation statements)

References 58 publications

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“…71 Figure S3 shows the Li1s spectra; Ni3p (∼67 eV) is seen because NiO is present instead of layered LiNiO 2 . 60 [72][73][74][75] Table I shows the corresponding bonding content in the O1s spectra in Figs. 5a-5e.…”

Section: Resultsmentioning

confidence: 99%

“…This is due to the reduction of Ni 3+ to Ni 2+ in lithium nickel oxide, leading to the oxidation of lattice oxygen (O 2− ) into active oxygen (O − ). 75 In previous studies, it has indicated that during charging-discharging process, lithium nickel oxides generates CO 2 , which then combines with active oxygen to form Li 2 CO 3 . 76 However, we did not observe the CO 3 2− peak in the electrochemical measurement under the potential window of 0.8 V, as shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, the areal capacity loss can be attributed to the formation of Ni 2+ byproducts. 75 According to the b-values, the GCD curves show a plateau; this is the battery-type material characteristic at low potential with APPJ processing time shorter than 180 s. As the APPJ treatment time increases, the GCD curves become more symmetrical and triangular, suggesting that the performance of LNO Li-ion HSCs is more capacitance-like.…”

Section: = [ ] I Avmentioning

confidence: 93%

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Li-Ni Metal Oxides Processed with Rapid Atmospheric-Pressure-Plasma Jet for Flexible Gel-Electrolyte Li-Ion Hybrid Supercapacitors

et al. 2023

ECS Adv.

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We use screen printing to deposit LiCl + Ni(NO3)2·6H2O pastes on a flexible carbon cloth substrate and then calcine it using a nitrogen atmospheric-pressure-plasma jet (APPJ). Through the high-temperature treatment by APPJ, pastes can be rapidly converted into Li-Ni oxides (LNOs). The LNOs on carbon cloth are then used as the electrodes of flexible gel-electrolyte Li-ion hybrid supercapacitors (Li-ion HSCs). The best areal capacity of 21.076 mC/cm2, as measured by cyclic voltammetry, is achieved by APPJ treatment at 620 °C for 480 s. To demonstrate the flexibility of the Li-ion HSCs, the Li-ion HSCs were bent at different curvatures to measure its performance. After bending test, the capacity remains >93% under bending with a curvature of up to 2 cm-1.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: = [ ] I Avmentioning

confidence: 93%

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Li-Ni Metal Oxides Processed with Rapid Atmospheric-Pressure-Plasma Jet for Flexible Gel-Electrolyte Li-Ion Hybrid Supercapacitors

et al. 2023

ECS Adv.

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“…For LFP, the material price is cheaper than the Ni-rich layered compounds, but the weight is heavy and dramatically decreases its energy density to reach the same value as layered compounds. In addition, the dissolution of transitional metal ions, such as Ni 2+ and Fe 2+ , also plays a critical role in the decay of battery performance, typically in high-temperature applications [1][2][3]. By considering with balance between cost and performance, LCO still demonstrates its outstanding characteristics from the point of view of its intrinsic material and further applications of the battery.…”

Section: Experiments 21 Synthesis Of Bumentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preventing the Distortion of CoO6 Octahedra of LiCoO2 at High-Voltage Operation of Lithium-Ion Battery: An Organic Surface Reinforcement

Wang

2023

Polymers

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Lithium cobalt oxide (LiCoO2, LCO) has been widely used in electronic markets due to its high energy density and wide voltage range applications. Recently, high-voltage (HV, >4.5 V) operation has been required to obey the requirements of high energy density and cycle life in several applications such as electric vehicles and energy storage. However, the HV operation causes structure instability due to the over de-lithiation of LCO, as well as decomposing common carbonate solvents, thereby incurring the decay of battery performance. Moreover, a distortion of the CoO6 octahedra of LCO during de-lithiation induces a rehybridization of the Co 3d and O 2p orbitals. According to above reasons, decreasing the Co-O covalent bond promptly triggers high risks that significantly limit further use of LCO. In this research, an organic surface reinforcement by using bismaleimide–uracil (BU) that electrochemically forms a cathode electrolyte interphase (CEI) on LCO was explored. The results of electrochemical impedance spectroscopy and battery performance, such as the c-rate and cyclability tests, demonstrated that the modified CEI formed from BU significantly prevents the distortion of CoO6 octahedra. X-ray photoelectronic spectroscopy and in situ XAS indicated less LiF formation and higher bond energy of Co-O improved. Finally, the differential scanning calorimetry showed the onset temperature of decomposition of LCO was extended from 245 to 270 °C at 100% state of charge, which is about a 25 °C extension. The exothermic heat of LCO decreased by approximately 30% for high-safety use. This research confirms that the BU is eligible for high voltage (>4.5 V) LCO and presents outstanding electrochemical properties and safety performances.

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Electrodes for Li-ion batteries: From high-voltage LiCoO2 to Co-reduced/Co-free layered oxides with potential anodes

Song,

Chu

2023

Nano Res.

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Evaluation of LiNiO2 with minimal cation mixing as a cathode for Li-ion batteries

Cited by 5 publications

References 58 publications

Li-Ni Metal Oxides Processed with Rapid Atmospheric-Pressure-Plasma Jet for Flexible Gel-Electrolyte Li-Ion Hybrid Supercapacitors

Li-Ni Metal Oxides Processed with Rapid Atmospheric-Pressure-Plasma Jet for Flexible Gel-Electrolyte Li-Ion Hybrid Supercapacitors

Preventing the Distortion of CoO6 Octahedra of LiCoO2 at High-Voltage Operation of Lithium-Ion Battery: An Organic Surface Reinforcement

Electrodes for Li-ion batteries: From high-voltage LiCoO2 to Co-reduced/Co-free layered oxides with potential anodes

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