Improving Electrochemical Stability by Transition Metal Cation Doping for Manganese in Lithium-rich Layered Cathode, Li 1.2 Ni 0.13 Co 0.13 Mn 0.54-x M x O 2  (M  =  Co, Cr and Fe)

Ramesha, R.N.; Laisa, C.P.; Ramesha, K.

doi:10.1016/j.electacta.2017.08.039

Cited by 38 publications

(12 citation statements)

References 40 publications

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“…Doping and cationic substitution of transition metals is one of the most widely explored approaches in improving the structural stability of the cathode materials. As such, the effect of the monovalent cations such as K and Na, divalent ion dopants such as Mg and Zn, trivalent Fe, Al and Au dopants, and tetravalent cations such as Ti and Ru have been studied on the structural stability of various cathode materials. It has been demonstrated that dopants with various valence groups can affect the structure and the properties of the cathode materials in different ways.…”

Section: Strategies To Improve the Structural Stability Of The Cathodesmentioning

confidence: 99%

Oxygen Release Degradation in Li‐Ion Battery Cathode Materials: Mechanisms and Mitigating Approaches

Sharifi‐Asl

Lü

Amine

et al. 2019

Advanced Energy Materials

385

233

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Widespread application of Li‐ion batteries (LIBs) in large‐scale transportation and grid storage systems requires highly stable and safe performance of the batteries in prolonged and diverse service conditions. Oxygen release from oxygen‐containing positive electrode materials is one of the major structural degradations resulting in rapid capacity/voltage fading of the battery and triggering the parasitic thermal runaway events. Herein, the authors summarize the recent progress in understanding the mechanisms of the oxygen release phenomena and correlative structural degradations observed in four major groups of cathode materials: layered, spinel, olivine, and Li‐rich cathodes. In addition, the engineering and materials design approaches that improve the structural integrity of the cathode materials and minimize the detrimental O2 evolution reaction are summarized. The authors believe that this review can guide researchers on developing mitigation strategies for the design of next‐generation oxygen‐containing cathode materials where the oxygen release is no longer a major degradation issue.

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Section: Strategies To Improve the Structural Stability Of The Cathodesmentioning

confidence: 99%

Oxygen Release Degradation in Li‐Ion Battery Cathode Materials: Mechanisms and Mitigating Approaches

Sharifi‐Asl

Lü

Amine

et al. 2019

Advanced Energy Materials

385

233

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“…The Li 2 MnO 3 component in this composition serves to maintain the electrode structure and improves capacity by removing the Li + ‐ions with an irreversible loss of oxygen (Li 2 O). These layered Li/Mn‐rich NMC cathodes can offer cost‐effectiveness, stability as well as safety advantages which can deliver higher capacity as compared to the other conventional cathode materials 9–14 …”

Section: Introductionmentioning

confidence: 99%

“…These layered Li/Mn-rich NMC cathodes can offer cost-effectiveness, stability as well as safety advantages which can deliver higher capacity as compared to the other conventional cathode materials. [9][10][11][12][13][14] Besides cathode material, electrolyte is also one of the important components for deciding the electrochemical performance of LIBs. Electrolytes provide the medium for transportation of Li + -ions conducting paths between the electrode during intercalation/de-intercalation mechanism and also work as a separator that keeps the anode and cathode from making direct contact.…”

Section: Introductionmentioning

confidence: 99%

High‐Voltage‐driven Li/Mn‐rich Li_1.₂Mn₀_.₆Ni₀_.₁Co₀_.₁O₂ Cathode with nanocomposite blend gel polymer electrolyte for long cyclic stability of rechargeable Li‐battery

et al. 2022

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Li/Mn‐rich layered oxide is an attractive cathode material for Li‐ion battery due to its low cost, high specific capacity, and high working potential. In this paper, the high capacity layered Li/Mn‐rich NMC cathode (Li1.2Mn0.6Ni0.1Co0.1O2) and nanocomposite blend gel polymer electrolytes (NBGPEs) are synthesized by using the sol‐gel method and solution casting technique, respectively. XRD results confirm that the cathode material has a well‐defined hexagonal layered structure. It is observed that the synthesized NBGPE containing 2 wt.% SiO2 nanofiller exhibits maximum ionic conductivity (5.2 mS cm−1), Li‐ion conductivity (~2.40 mS cm−1), and wide electrochemical stability (~5.4 V vs Li/Li+) at 30°C. The electrochemical performance of the cell (Li/NBGPE#1/Li1.2Mn0.6Ni0.1Co0.1O2) has been investigated by cyclic voltammetry and galvanostatic charge–discharge measurement. The cell delivers maximum specific discharge capacity of 212.0 mAh g−1 at 0.1C and good rate performance within 2.0‐4.8 V. At 0.2C, the cell shows stable coulombic efficiency ~98% after 200th cycle due to better interfacial stability between NBGPE#1 and the electrode.

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“…Li-rich layered cathodes Li 1.2 Ni x Mn y Co x O 2 (in composite notation Li 2 MnO 3 ·LiNi x Co y M z O 2 ) are considered to be the next-generation battery cathode materials because of their high energy density and a high discharge capacity of ≥250 mA h g –1 . However, these layered cathode materials suffer from various issues which limit their practical applications, viz., loss of oxygen from the crystal lattice and huge irreversible capacity loss during the initial cycle, cation migration and structural instability during charge–discharge, voltage decay, poor rate capability, and electrolyte oxidation at higher potentials. , Several attempts have been made to overcome the aforementioned shortcomings including advanced synthesis methods, cationic substitution, , anion/cation doping, , surface coating, , acid treatment, electrolyte additive, , and so forth.…”

Section: Introductionmentioning

confidence: 99%

Tuning of Ni, Mn, and Co (NMC) Content in 0.4(LiNi_xMn_yCo_zO₂)·0.4(Li₂MnO₃) toward Stable High-Capacity Lithium-Rich Cathode Materials

Ramesha

Bosubabu

Babu

et al. 2020

ACS Appl. Energy Mater.

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Li-rich cathode materials can offer a high specific capacity of ≥250 mA h g −1 ; however, the major issues are their structural instability, capacity degradation, and voltage decay upon prolonged cycling. Herein, we have shown that an increase in Ni content with a concomitant reduction in Mn and Co content in Li-rich cathode materials can help to alleviate structural and electrochemical instability to a considerable extent. In this regard, we have carried out a systematic investigation of tuning the Ni, Mn, and Co (NMC) content in the Li-rich phase, Li 1.2 (Ni x Mn y Co z )O 2 (where x + y + z = 0.8). In the composite notion, these Li-rich phases can also be written as 0.4(LiNi x Mn y Co z O 2 )•0.4(Li 2 MnO 3 ), where the layered oxide components LiNi x Mn y Co z O 2 (x + y + z = 1) are generally termed as NMC-333, NMC-442, NMC-532, NMC-622, and NMC-811, depending upon the concentration of metal constituents. The electrochemical studies reveal that the higher Ni-containing phase 0.4(LiNi 0.8 Mn 0.1 Co 0.1 O 2 )•0.4(Li 2 MnO 3 ) or Li 1.2 Ni 0.32 Co 0.04 Mn 0.44 O 2 shows the least voltage decay of about 0.4 V and a higher capacity retention of 85% after 100 cycles compared to those of the low Ni-containing composition 0.4(LiNi 0.33 Mn 0.33 Co 0.33 O 2 )•0.4(Li 2 MnO 3 ) or Li 1.2 Ni 0.13 Co 0.13 Mn 0.54 O 2 , which shows a higher voltage decay of 1.0 V with a 69% capacity retention after 100 cycles at a 0.2 C rate.

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Improving Electrochemical Stability by Transition Metal Cation Doping for Manganese in Lithium-rich Layered Cathode, Li 1.2 Ni 0.13 Co 0.13 Mn 0.54-x M x O 2 (M = Co, Cr and Fe)

Cited by 38 publications

References 40 publications

Oxygen Release Degradation in Li‐Ion Battery Cathode Materials: Mechanisms and Mitigating Approaches

Oxygen Release Degradation in Li‐Ion Battery Cathode Materials: Mechanisms and Mitigating Approaches

High‐Voltage‐driven Li/Mn‐rich Li_1.₂Mn₀_.₆Ni₀_.₁Co₀_.₁O₂ Cathode with nanocomposite blend gel polymer electrolyte for long cyclic stability of rechargeable Li‐battery

Tuning of Ni, Mn, and Co (NMC) Content in 0.4(LiNi_xMn_yCo_zO₂)·0.4(Li₂MnO₃) toward Stable High-Capacity Lithium-Rich Cathode Materials

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Improving Electrochemical Stability by Transition Metal Cation Doping for Manganese in Lithium-rich Layered Cathode, Li 1.2 Ni 0.13 Co 0.13 Mn 0.54-x M x O 2 (M = Co, Cr and Fe)

Cited by 38 publications

References 40 publications

Oxygen Release Degradation in Li‐Ion Battery Cathode Materials: Mechanisms and Mitigating Approaches

Oxygen Release Degradation in Li‐Ion Battery Cathode Materials: Mechanisms and Mitigating Approaches

High‐Voltage‐driven Li/Mn‐rich Li1.2Mn0.6Ni0.1Co0.1O2 Cathode with nanocomposite blend gel polymer electrolyte for long cyclic stability of rechargeable Li‐battery

Tuning of Ni, Mn, and Co (NMC) Content in 0.4(LiNixMnyCozO2)·0.4(Li2MnO3) toward Stable High-Capacity Lithium-Rich Cathode Materials

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High‐Voltage‐driven Li/Mn‐rich Li_1.₂Mn₀_.₆Ni₀_.₁Co₀_.₁O₂ Cathode with nanocomposite blend gel polymer electrolyte for long cyclic stability of rechargeable Li‐battery

Tuning of Ni, Mn, and Co (NMC) Content in 0.4(LiNi_xMn_yCo_zO₂)·0.4(Li₂MnO₃) toward Stable High-Capacity Lithium-Rich Cathode Materials