LiMn2O4 Spinel/LiNi0.8Co0.15Al0.05O2 Blends as Cathode Materials for Lithium-Ion Batteries

Tran, Hai Yen; Täubert, Corina; Fleischhammer, Meike; Axmann, Peter; Küppers, Laszlo; Wohlfahrt‐Mehrens, Margret

doi:10.1149/1.3560582

Cited by 82 publications

(45 citation statements)

References 38 publications

(36 reference statements)

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“…A blended cathode material made of LMO and NCA proposed shows improved performances in increased discharge capacity and reduced heat generation in addition to decreased Mn dissolution. An optimal ratio of NCA for the best performance is 33.3% [5]. In addition, different ratios of LMO and NCA can also achieve improved performances in rate capability, and combined power and energy [6].…”

Section: Review Of Blended Cathode Materialsmentioning

confidence: 99%

A reduced order electrochemical and thermal model for a pouch type lithium ion polymer battery with LiNixMnyCo1−x−yO2/LiFePO4 blended cathode

Choe

Joe

2015

Journal of Power Sources

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Section: Review Of Blended Cathode Materialsmentioning

confidence: 99%

A reduced order electrochemical and thermal model for a pouch type lithium ion polymer battery with LiNixMnyCo1−x−yO2/LiFePO4 blended cathode

Choe

Joe

2015

Journal of Power Sources

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“…Blending different kinds of active materials is a promising approach to improve the properties of electrodes for lithium‐ion batteries (LIBs) . Layered‐layered, spinel‐spinel, layered‐olivine and spinel‐olivine mixtures exhibit great improvements concerning safety, rate capability and also cycle stability . Despite these promising perspectives, basic interactions, especially the specific influence of the single components on the properties of the blend, are not satisfactorily understood at the moment.…”

Section: Introductionmentioning

confidence: 99%

Investigations on the Effective Electric Loads in Blended Insertion Electrodes for Lithium‐Ion Batteries

et al. 2019

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Blending different types of active materials in one electrode is a great opportunity to improve the overall performance of lithium‐ion batteries. Despite considerable progress in the recent years, basic interactions, such as the specific impact of a single component on the blends’ properties, are not satisfactorily understood at the moment. In this study, the electric loads of the individual components of a blend are investigated using a special experimental setup in combination with model‐like blended electrodes. Systematic studies on the impact of type and mass fraction of the components are conducted for different nominal charge and discharge rates. The experiments reveal that the single components can be charged and discharged independent from each other, according to their characteristic redox activities and the overpotential during operation. This can lead to high effective electric loads (C‐rates) subjected to a single component despite a comparatively low total current applied to the electrode. Based on the experimental results, a simple model is developed to estimate maximum effective C‐rates of the individual components in an arbitrary blend system. These novel insights are discussed in regarding advantages and disadvantages of battery electrodes with multiple active materials.

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“…Several works have been reported on the mixed spinel LiMn 2 O 4 and layered LiMO 2 composite cathode materials [92][93][94][95]. The mixing can decrease the manganese dissolution of LiMn 2 O 4 and capacity fading [92].…”

Section: The Combination Of Layered and Spinel Cathodementioning

confidence: 99%

Layered and Spinel Structural Cathodes

Lyu

Huang

2015

Rechargeable Batteries

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Layered and spinel materials have been used successfully as intercalation-type cathode active materials in commercial Li-ion batteries. The physical and chemical properties, electrochemical reactions, structure evolution mechanisms, stability and safety issues have been widely investigated. Based on comprehensive fundamental researches, since 1980s, their electrochemical performances are improved continuous after various modifications, such as doping, surface coating, forming solid solution and composite, controlling morphology, size and crystallinity. Here, basic features of layered and spinel materials are summarized.

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LiMn2O4 Spinel/LiNi0.8Co0.15Al0.05O2 Blends as Cathode Materials for Lithium-Ion Batteries

Cited by 82 publications

References 38 publications

A reduced order electrochemical and thermal model for a pouch type lithium ion polymer battery with LiNixMnyCo1−x−yO2/LiFePO4 blended cathode

A reduced order electrochemical and thermal model for a pouch type lithium ion polymer battery with LiNixMnyCo1−x−yO2/LiFePO4 blended cathode

Investigations on the Effective Electric Loads in Blended Insertion Electrodes for Lithium‐Ion Batteries

Layered and Spinel Structural Cathodes

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