Off-stoichiometric TiO2--decorated graphite anode for high-power lithium-ion batteries

Rhee, Dong Young; Kim, Junyoung; Moon, Janghyuk; Park, Min

doi:10.1016/j.jallcom.2020.156042

Cited by 38 publications

(23 citation statements)

References 38 publications

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“…[ 96,168 ] For example, Park and co‐workers plated TiO 2 nanoparticles at the surface of commercial graphite (Figure 27b). [ 165 ] Their results demonstrate that SEI formation is suppressed at TiO 2 ‐coated graphite, while the electrochemical performance and thermal stability are improved.…”

Section: Improvement Strategiesmentioning

confidence: 99%

A Review of Degradation Mechanisms and Recent Achievements for Ni‐Rich Cathode‐Based Li‐Ion Batteries

Jiang

Danilov

Eichel

et al. 2021

Advanced Energy Materials

354

180

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The growing demand for sustainable energy storage devices requires rechargeable lithium‐ion batteries (LIBs) with higher specific capacity and stricter safety standards. Ni‐rich layered transition metal oxides outperform other cathode materials and have attracted much attention in both academia and industry. Lithium‐ion batteries composed of Ni‐rich layered cathodes and graphite anodes (or Li‐metal anodes) are suitable to meet the energy requirements of the next generation of rechargeable batteries. However, the instability of Ni‐rich cathodes poses serious challenges to large‐scale commercialization. This paper reviews various degradation processes occurring at the cathode, anode, and electrolyte in Ni‐rich cathode‐based LIBs. It highlights the recent achievements in developing new stabilization strategies for the various battery components in future Ni‐rich cathode‐based LIBs.

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Section: Improvement Strategiesmentioning

confidence: 99%

A Review of Degradation Mechanisms and Recent Achievements for Ni‐Rich Cathode‐Based Li‐Ion Batteries

Jiang

Danilov

Eichel

et al. 2021

Advanced Energy Materials

354

180

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show abstract

“…As exhibited in Figure 1c, the peak positions of C 1s, Ti 2p, Nb 3d, and O 1s of TNC-300, TNC-450, and TNC-600 have shifted towards higher binding energy, implying some phase changes must occur after calcination. As displayed in the high-resolution spectrum of Ti 2p (Figure 1d), TNC has 6 sets of standard peaks, [12] the signals at 454.68 and 460.81 eV are corresponded to the Ti 2p 3/2 and Ti 2p 1/2 , [68,69] while the binding energies of Ti 2p 3/2 and Ti 2p 1/2 in TNC-300, TNC-450, TNC-600 samples are shifted to 458.53 and 464.23 eV, further revealing the oxidation of Ti-C. In addition, most of the chemical bonds in TNC, such as Ti 3+ , Ti 2+ , Ti-O, Ti-C, become Ti-O after oxidation in TNC-300 and TNC-450.…”

Section: Resultsmentioning

confidence: 97%

Architecting Nb‐TiO₂₋_x/(Ti_0.9Nb_0.1)₃C₂T_x MXene Nanohybrid Anode for High‐Performance Lithium‐Ion Batteries

Dai

Cao

Feng

et al. 2021

Adv Materials Inter

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MXene‐based materials with excellent conductivity and stability features have attracted worldwide attention as anode of lithium‐ion batteries (LIBs), while the serious stacking issue and low capacity still hinder its further development in the field of energy storage. In this work, a nanohybrid architecture (Nb‐TiO2−x/MXene) is prepared with Nb‐TiO2−x particles conformally coated on the (Ti0.9Nb0.1)3C2Tx MXene via a facile annealing method, which delivers a high specific capacity of 279.2 mAh g−1 at the current density of 0.1 A g−1 and a superior capacity retention of 91.5% after 2000 cycle at 1 A g−1 as the anode material of LIBs. Importantly, the (Ti0.9Nb0.1)3C2Tx MXene layers provide sufficient active sites and open pathways as well as structural support for the reversible Li+ insertion/extraction, and the Nb‐TiO2−x particles enable reversible and fast Li+ diffusion and storage, thus leading to high‐performance and durable anode materials. This work offers a guidance for the elaborate design of MXene‐based nanostructured electrodes toward advanced energy storage devices.

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“…Nonetheless, the rather similar thermodynamic stability of the two polymorphs, especially at the nanoscale, [30][31][32] results in a challenging large-scale synthesis of phase-pure anatase TiO 2even more so, when considering the various approaches to further optimize the electrochemical performance, including the introduction of dopants or defects as well as the realization of smartly designed and well-elaborated nanostructures and nanocomposites. [20,[33][34][35][36][37][38] In fact, even the well-established TiO 2 has been investigated as an alternative anode material candidate for lithiumion batteries for several years now due to its advantageous safety and rate capability in combination with its nontoxicity and abundance. Herein, the synthesis via laser pyrolysis is reported, which allows the single-step, industrial-scale realization of carbon-coated TiO 2 nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Effect of the Secondary Rutile Phase in Single‐Step Synthesized Carbon‐Coated Anatase TiO₂ Nanoparticles as Lithium‐Ion Anode Material

et al. 2021

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TiO2 has been investigated as an alternative anode material candidate for lithium‐ion batteries for several years now due to its advantageous safety and rate capability in combination with its nontoxicity and abundance. Herein, the synthesis via laser pyrolysis is reported, which allows the single‐step, industrial‐scale realization of carbon‐coated TiO2 nanoparticles. The modification of the synthesis parameters enables the variation of the rutile‐to‐anatase phase ratio. Following comprehensive physicochemical and electrochemical characterization, both the higher and lower rutile‐to‐anatase ratios show very stable cycling in lithium battery half cells, whereas the extended presence of the rutile phase limits the achievable specific capacity and lowers the apparent lithium‐ion diffusion coefficient, which leads to relatively lower capacities at elevated current densities.

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Off-stoichiometric TiO2--decorated graphite anode for high-power lithium-ion batteries

Cited by 38 publications

References 38 publications

A Review of Degradation Mechanisms and Recent Achievements for Ni‐Rich Cathode‐Based Li‐Ion Batteries

A Review of Degradation Mechanisms and Recent Achievements for Ni‐Rich Cathode‐Based Li‐Ion Batteries

Architecting Nb‐TiO₂₋_x/(Ti_0.9Nb_0.1)₃C₂T_x MXene Nanohybrid Anode for High‐Performance Lithium‐Ion Batteries

Effect of the Secondary Rutile Phase in Single‐Step Synthesized Carbon‐Coated Anatase TiO₂ Nanoparticles as Lithium‐Ion Anode Material

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Off-stoichiometric TiO2--decorated graphite anode for high-power lithium-ion batteries

Cited by 38 publications

References 38 publications

A Review of Degradation Mechanisms and Recent Achievements for Ni‐Rich Cathode‐Based Li‐Ion Batteries

A Review of Degradation Mechanisms and Recent Achievements for Ni‐Rich Cathode‐Based Li‐Ion Batteries

Architecting Nb‐TiO2−x/(Ti0.9Nb0.1)3C2Tx MXene Nanohybrid Anode for High‐Performance Lithium‐Ion Batteries

Effect of the Secondary Rutile Phase in Single‐Step Synthesized Carbon‐Coated Anatase TiO2 Nanoparticles as Lithium‐Ion Anode Material

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Resources

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Architecting Nb‐TiO₂₋_x/(Ti_0.9Nb_0.1)₃C₂T_x MXene Nanohybrid Anode for High‐Performance Lithium‐Ion Batteries

Effect of the Secondary Rutile Phase in Single‐Step Synthesized Carbon‐Coated Anatase TiO₂ Nanoparticles as Lithium‐Ion Anode Material