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首页> 外文会议>Lithium battery chemistry 2017 >Simple Experiments Giving Deep Insights into Capacity Fade and Capacity Loss Mechanisms of Li Battery Materials
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Simple Experiments Giving Deep Insights into Capacity Fade and Capacity Loss Mechanisms of Li Battery Materials

机译：通过简单的实验深入了解锂电池材料的容量衰减和容量损失机制

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摘要

1. In full cells, anode and cathode may contribute to capacity fade and "capacity loss" 2. Electrolyte oxidation makes a minor contribution to low Coulombic efficiencies of cathodes at high voltage 3. The type of active material, rather than the cut-off and operation potentials determine HV performance 4. The practical cathode capacity should be derived from the charge capacity, and not from the discharge capacity 5. The contribution of Active Lithium Losses (Q_(ALL)) to Irrev. Capacities (Q_(irr) and Q_(AIC)) can be determined → "IRLC-Method" 6. Simple, but in the community uncommon electrochemical techniques reveal that "common wisdom" may need a thorough re-thinking.
机译：1.在充满电的电池中，阳极和阴极可能会导致容量衰减和“容量损失”。2.电解质氧化对阴极在高电压下的低库仑效率造成很小的贡献。3.活性材料的类型，而不是切割关断电压和工作电势决定了HV性能。4.实际阴极容量应从充电容量中得出，而不应从放电容量中得出。5.活性锂损失（Q_（ALL））对Irrev的贡献。可以确定容量（Q_（irr）和Q_（AIC））→“ IRLC方法”。6.简单，但在社区中，不常见的电化学技术表明，“常识”可能需要彻底的重新思考。

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  • 来源
    《Lithium battery chemistry 2017》|2017年|71-86|共16页
  • 会议地点 Mainz(DE)
  • 作者

    Florian Holtstiege; Johannes Kasnatscheew; Ralf Wagner; Tobias Placke; Martin Winter;

  • 作者单位

    MEET Battery Research Center, Institute of Physical Chemistry, Univ. of Muenster, GER;

    MEET Battery Research Center, Institute of Physical Chemistry, Univ. of Muenster, GER;

    MEET Battery Research Center, Institute of Physical Chemistry, Univ. of Muenster, GER;

    MEET Battery Research Center, Institute of Physical Chemistry, Univ. of Muenster, GER;

    MEET Battery Research Center, Institute of Physical Chemistry, Univ. of Muenster, GER,Helmholtz Institute Muenster, Ionics in Energy Storage, IEK-12 of Forschungszentrum Juelich;

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