Boosting rate performance of LiNi0.8Co0.15Al0.05O2 cathode by simply mixing lithium iron phosphate

Huang, Wenjin; Zheng, Jiayu; Liu, Jing; Rui-ming, Yang; Cheng, Feixiang; Suo, Hongbo; Guo, Hong; Xia, Shu-Biao

doi:10.1016/j.jallcom.2020.154296

Cited by 24 publications

(10 citation statements)

References 62 publications

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“…Moreover, the high thermal stability significantly improves the safety of the blend electrode. [25][26][27][28][29][30] Partial substitution of iron with manganese increases the energy density of the material, which enables both excellent electrochemical performance as well as low cost electrode when mixed with NMC. [29,30] The third binary combination, LMFP and LMO, is free of cobalt and nickel, which makes this blend inexpensive and environmentally friendly.…”

Section: Introductionmentioning

confidence: 99%

Ternary Cathode Blend Electrodes for Environmentally Friendly Lithium‐Ion Batteries

et al. 2020

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The combination of two active materials into one positive electrode of a lithium‐ion battery is an uncomplicated and cost‐effective way to combine the advantages of different active materials while reducing the disadvantages of each material. In this work, the concept of binary blends is extended to ternary compositions. The combination of three different active materials provides high versatility in designing the properties of an electrode. Therefore, the unique properties of a layered oxide, phospho‐olivine, and spinel type material are mixed to design a high‐energy cathode with improved environmental friendliness. Four different compositions of blend electrodes are investigated, each with individual benefits. Synergistic effects improved the rate capability, power density, thermal and chemical stability simultaneously. The blend electrode consisting of 75 % NMC, 12.5 % LMFP and LMO provides similar energy and power density as a pure NMC electrode while economizing 25 % cobalt and nickel.

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Section: Introductionmentioning

confidence: 99%

Ternary Cathode Blend Electrodes for Environmentally Friendly Lithium‐Ion Batteries

et al. 2020

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“…On charging to 4.2 V at 55 • C, NCA-LFP cathodes showed an initial capacity of 201 mAh g −1 and capacity retention of 95% after 150 cycles [109]. The remarkable efficiency of LFP-coating was confirmed by Huang et al who reported that a NCA modified with 5 wt.% LFP has the best cycling and rate performance, with a higher capacity-retention (89.4% after 200 cycles, at 2 C) [110]. In this work, a simple ball-milling method was used to modify the surface of NCA materials and fill the gaps between particles, a less expensive process than sol-gel, liquid-phase, or ALD coating process, and thus more scalable for industrial development.…”

Section: Stability Improvementmentioning

confidence: 78%

NCA, NCM811, and the Route to Ni-Richer Lithium-Ion Batteries

Julien

Mauger

2020

Energies

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The aim of this article is to examine the progress achieved in the recent years on two advanced cathode materials for EV Li-ion batteries, namely Ni-rich layered oxides LiNi0.8Co0.15Al0.05O2 (NCA) and LiNi0.8Co0.1Mn0.1O2 (NCM811). Both materials have the common layered (two-dimensional) crystal network isostructural with LiCoO2. The performance of these electrode materials are examined, the mitigation of their drawbacks (i.e., antisite defects, microcracks, surface side reactions) are discussed, together with the prospect on a next generation of Li-ion batteries with Co-free Ni-rich Li-ion batteries.

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“…The electrode layers are separated by a porous polyethylene or polypropylene separator film [58][59][60][61][62]. The negative and positive electrodes are fitted with copper and aluminum current collector foils, respectively [63][64][65][66][67].…”

Section: Descriptionmentioning

confidence: 99%

Multiphysics modeling of lithium-ion, lead-acid, and vanadium redox flow batteries

Castro

Rosario

Chong

et al. 2021

Journal of Energy Storage

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Boosting rate performance of LiNi0.8Co0.15Al0.05O2 cathode by simply mixing lithium iron phosphate

Cited by 24 publications

References 62 publications

Ternary Cathode Blend Electrodes for Environmentally Friendly Lithium‐Ion Batteries

Ternary Cathode Blend Electrodes for Environmentally Friendly Lithium‐Ion Batteries

NCA, NCM811, and the Route to Ni-Richer Lithium-Ion Batteries

Multiphysics modeling of lithium-ion, lead-acid, and vanadium redox flow batteries

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