Impact of Li<sub>2</sub>O/Metal Mole Ratio on Lithium-ion Battery Anode Performance

Muharrem Kunduraci; Turkan Gamze Ulusoy Ghobadi; Eda Yilmaz

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Impact of Li₂O/Metal Mole Ratio on Lithium-ion Battery Anode Performance

机译：Li _{2 O /金属摩尔比对锂离子电池阳极性能的影响}

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In this study the electrochemical impact of Li2O/metal mole ratio on the cycle life of lithium-ionbattery anode materials is demonstrated. For this purpose, nanostructured layered LiNi1/3Mn1/3Co1/3O2(LiNMC) and spinel LiMn1.5Ni0.5O4 (LiMNO) materials, traditionally known as cathode materials, areevaluated as anode materials and compared against their lithium-free versions NMC (Ni:Mn:Co=1:1:1)and MNO (Mn:Ni=3:1). The Li2O/metal ratio in fully lithiated states are 2.0 for lithium containing(LiNMC and LiMNO) and 1.3 for lithium-free (NMC and MNO) samples. Battery tests show thatcapacity fading of lithium containing samples is 3 to 4 times larger than lithium-free samples. Thedifferences in the electronic conductivities and voltages profiles of lithium containing and lithium-freeanode materials are suggested to be the origin of such electrochemical disparity.

机译：在这研究中，证明了Li2O /金属摩尔比对锂离子架阳极材料循环寿命的电化学影响。为此目的，纳米结构层状LINI1 / 3MN1 / 3CO1 / 3O2（LINMC）和尖晶石LIMN1.5NI0.5O4（LIMNO）材料，传统上称为阴极材料，作为阳极材料，并与其锂无锂版本NMC（NI： Mn：Co = 1：1：1）和MnO（Mn：Ni = 3：1）。全锂化状态中的Li 2 O /金属比为含锂（LinMC和Limno）的2.0，并为1.3锂 - 无锂（NMC和MNO）样品。电池测试显示含锂样品的逐渐消耗的样品比无锂样品大3至4倍。在含锂和锂 - FreeAndode材料的电子电导率和电压型材中的目的建议是这种电化学视差的起源。

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《International Journal of Electrochemical Science》 |2018年第6期|共15页
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Muharrem Kunduraci; Turkan Gamze Ulusoy Ghobadi; Eda Yilmaz;
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Impact of Li2O/Metal Mole Ratio on Lithium-ion Battery Anode Performance

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Impact of Li₂O/Metal Mole Ratio on Lithium-ion Battery Anode Performance