Factors affecting cycling life of LiNi0.8Co0.15Al0.05O2for lithium-ion batteries

Makimura, Yoshinari; Sasaki, Tsuyoshi; Nonaka, Takamasa; Nishimura, Yusaku; Uyama, Takeshi; Okuda, Chikaaki; Itou, Yuichi; Takeuchi, Yugo

doi:10.1039/c6ta01251e

Cited by 105 publications

(98 citation statements)

References 51 publications

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“…2 (a) shows the X-ray diffraction (XRD) profiles of the two samples. All the diffraction peaks are indexed to the α-NaFeO 2 layered structure [11,29] , which is in good agreement with the analysis of the commercial NCA MPs (Fig. S2).…”

Section: Li-ion Battery Assembly and Electrochemical Characterizationsupporting

confidence: 86%

“…Moreover, metal cobalt is toxic and expensive [8] . Recently, layered Ni-rich LiNi 0.815 Co 0.15 Al 0.035 O 2 (NCA) ternary cathode materials have attracted much attention on account of their desirable actual specific capacity as high as 180 mAh g −1 , high potential (vs. Li/Li + ) and greatly reducing the metal cobalt content [9][10][11] . However, the inactive NiO phase with rocksalt structure is easily grown on the surface of NCA nanoparticles during the repeated charge/discharge process, and hence resulting in the rapid capacity loss [12][13][14][15][16] .…”

Section: Introductionmentioning

confidence: 99%

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Surface-engineering of layered LiNi 0.815 Co 0.15 Al 0.035 O 2 cathode material for high-energy and stable Li-ion batteries

et al. 2018

Journal of Energy Chemistry

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Section: Li-ion Battery Assembly and Electrochemical Characterizationsupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Surface-engineering of layered LiNi 0.815 Co 0.15 Al 0.035 O 2 cathode material for high-energy and stable Li-ion batteries

et al. 2018

Journal of Energy Chemistry

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“…The galvanostatic discharge curves of NCM and LT1 are depicted in Figure c,d, respectively. The voltage hysteresis of both materials gradually increases during extend cycling, which may reflect the increasing impedance and structural degradation . The results demonstrate NCM sample suffers serious voltage decay and hysteresis compared to LT1, and also confirm that the layered structural stability is enhanced by Ti 4+ doping and La 4 NiLO 8 surface modification.…”

Section: Resultsmentioning

confidence: 71%

Simultaneously Dual Modification of Ni‐Rich Layered Oxide Cathode for High‐Energy Lithium‐Ion Batteries

Yang

et al. 2019

Adv Funct Materials

472

274

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A critical challenge in the commercialization of layer-structured Ni-rich materials is the fast capacity drop and voltage fading due to the interfacial instability and bulk structural degradation of the cathodes during battery operation. Herein, with the guidance of theoretical calculations of migration energy difference between La and Ti from the surface to the inside of LiNi 0.8 Co 0.1 Mn 0.1 O 2 , for the first time, Ti-doped and La 4 NiLiO 8 -coated LiNi 0.8 Co 0.1 Mn 0.1 O 2 cathodes are rationally designed and prepared, via a simple and convenient dual-modification strategy of synchronous synthesis and in situ modification. Impressively, the dual modified materials show remarkably improved electrochemical performance and largely suppressed voltage fading, even under exertive operational conditions at elevated temperature and under extended cutoff voltage. Further studies reveal that the nanoscale structural degradation on material surfaces and the appearance of intergranular cracks associated with the inconsistent evolution of structural degradation at the particle level can be effectively suppressed by the synergetic effect of the conductive La 4 NiLiO 8 coating layer and the strong TiO bond. The present work demonstrates that our strategy can simultaneously address the two issues with respect to interfacial instability and bulk structural degradation, and it represents a significant progress in the development of advanced cathode materials for high-performance lithium-ion batteries.

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“…[15,16] As of 2017, it is widely used commercially, including in Tesla electric vehicles. [161][162][163] Aluminum, which is electrochemically inactive, can stabilize the layered structure and cell impedance, thus improving the performance. [161][162][163] Aluminum, which is electrochemically inactive, can stabilize the layered structure and cell impedance, thus improving the performance.…”

Section: Ncamentioning

confidence: 99%

Narrowing the Gap between Theoretical and Practical Capacities in Li‐Ion Layered Oxide Cathode Materials

Radin

Sina

et al. 2017

Advanced Energy Materials

534

566

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Although layered lithium oxides have become the cathode of choice for state‐of‐the‐art Li‐ion batteries, substantial gaps remain between the practical and theoretical energy densities. With the aim of supporting efforts to close this gap, this work reviews the fundamental operating mechanisms and challenges of Li intercalation in layered oxides, contrasts how these challenges play out differently for different materials (with emphasis on Ni–Co–Al (NCA) and Ni–Mn–Co (NMC) alloys), and summarizes the extensive corpus of modifications and extensions to the layered lithium oxides. Particular emphasis is given to the fundamental mechanisms behind the operation and degradation of layered intercalation electrode materials as well as novel modifications and extensions, including Na‐ion and cation‐disordered materials.

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Factors affecting cycling life of LiNi_0.8Co_0.15Al_0.05O₂for lithium-ion batteries

Abstract: Factors affecting the cycling life of cylindrical lithium-ion batteries of LiNi0.8Co0.15Al0.05O2(NCA) with graphite were examined in terms of the rechargeable capacity and polarization of NCA derivatives of LizNi0.8Co0.15Al0.05O2−δ(0.8 ≤z≤ 1.05).

Cited by 105 publications

References 51 publications

Surface-engineering of layered LiNi 0.815 Co 0.15 Al 0.035 O 2 cathode material for high-energy and stable Li-ion batteries

Surface-engineering of layered LiNi 0.815 Co 0.15 Al 0.035 O 2 cathode material for high-energy and stable Li-ion batteries

Simultaneously Dual Modification of Ni‐Rich Layered Oxide Cathode for High‐Energy Lithium‐Ion Batteries

Narrowing the Gap between Theoretical and Practical Capacities in Li‐Ion Layered Oxide Cathode Materials

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