Blended spherical lithium iron phosphate cathodes for high energy density lithium–ion batteries

Liu, Yuanyuan; Líu, Hao; An, Liwei; Zhao, Xinxin; Liang, Guangchuan

doi:10.1007/s11581-018-2566-7

Cited by 23 publications

(10 citation statements)

References 34 publications

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“…There is thus scope for significant improvements to be made to LFP cathodes by carefully tuning the electrical properties of the electrolyte and the electrode conduction network, a fact that has been noted previously by Johns et al [25] who demonstrate that changes to the electrolyte properties in a LFP cathode can result in increases in maximum discharge rate of around two orders of magnitude. Volumetric energy density and rate capability can also be improved by using a blend of differently sized electrode particles [27,28,47]. Liu et al [28] showed that by using a nano-micro structured LFP electrode it is possible to achieve higher compaction density, lower resistance, superior rate capability, and higher volumetric energy density whilst still maintaining excellent cycling stability [28].…”

Section: Introductionmentioning

confidence: 99%

“…Volumetric energy density and rate capability can also be improved by using a blend of differently sized electrode particles [27,28,47]. Liu et al [28] showed that by using a nano-micro structured LFP electrode it is possible to achieve higher compaction density, lower resistance, superior rate capability, and higher volumetric energy density whilst still maintaining excellent cycling stability [28].…”

Section: Introductionmentioning

confidence: 99%

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Understanding rapid charge and discharge in nano-structured lithium iron phosphate cathodes

2021

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A Doyle–Fuller–Newman (DFN) model for the charge and discharge of nano-structured lithium iron phosphate (LFP) cathodes is formulated on the basis that lithium transport within the nanoscale LFP electrode particles is much faster than cell discharge, and is therefore not rate limiting. We present some numerical solutions to the model and show that for relevant parameter values, and a variety of C-rates, it is possible for sharp discharge fronts to form and intrude into the electrode from its outer edge(s). These discharge fronts separate regions of fully utilised LFP electrode particles from those that are not. Motivated by this observation an asymptotic solution to the model is sought. The results of the asymptotic analysis of the DFN model lead to a reduced order model, which we term the reaction front model (or RFM). Favourable agreement is shown between solutions to the RFM and the full DFN model in appropriate parameter regimes. The RFM is significantly cheaper to solve than the DFN model, and therefore has the potential to be used in scenarios where computational costs are prohibitive, e.g. in optimisation and parameter estimation problems or in engineering control systems.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Understanding rapid charge and discharge in nano-structured lithium iron phosphate cathodes

2021

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“…Various lithium battery materials have already been produced in a large scale and applied in daily life, including lithium manganese oxide [166,167], lithium cobalt oxide [168,169], ternary cathode material [170], lithium iron phosphate [171,172], etc. However, few of them have been reported in the literature employed as CDI electrodes mainly because the voltage plateaus might not exist within the voltage window of water.…”

Section: Li-ion Battery Materialsmentioning

confidence: 99%

A Review of Battery Materials as CDI Electrodes for Desalination

Jiang

Alhassan

Wei

et al. 2020

Water

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The world is suffering from chronic water shortage due to the increasing population, water pollution and industrialization. Desalinating saline water offers a rational choice to produce fresh water thus resolving the crisis. Among various kinds of desalination technologies, capacitive deionization (CDI) is of significant potential owing to the facile process, low energy consumption, mild working conditions, easy regeneration, low cost and the absence of secondary pollution. The electrode material is an essential component for desalination performance. The most used electrode material is carbon-based material, which suffers from low desalination capacity (under 15 mg·g−1). However, the desalination of saline water with the CDI method is usually the charging process of a battery or supercapacitor. The electrochemical capacity of battery electrode material is relatively high because of the larger scale of charge transfer due to the redox reaction, thus leading to a larger desalination capacity in the CDI system. A variety of battery materials have been developed due to the urgent demand for energy storage, which increases the choices of CDI electrode materials largely. Sodium-ion battery materials, lithium-ion battery materials, chloride-ion battery materials, conducting polymers, radical polymers, and flow battery electrode materials have appeared in the literature of CDI research, many of which enhanced the deionization performances of CDI, revealing a bright future of integrating battery materials with CDI technology.

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“…LIBs are used in many real-world applications, such as electric vehicles (EVs), battery energy storage systems (BESSs), and small portable devices such as laptops and smartphones [9]. Due to the increasing interest in LIBs, researchers have been focusing on increasing the energy density and lowering the costs of LIBs, allowing the battery technology to advance further [10][11][12]. In most real-world applications, the battery management system (BMS) is a mandatory component, serving the purpose of monitoring the battery's health and safety.…”

Section: Introductionmentioning

confidence: 99%

Concept Review of a Cloud-Based Smart Battery Management System for Lithium-Ion Batteries: Feasibility, Logistics, and Functionality

et al. 2022

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Energy storage plays an important role in the adoption of renewable energy to help solve climate change problems. Lithium-ion batteries (LIBs) are an excellent solution for energy storage due to their properties. In order to ensure the safety and efficient operation of LIB systems, battery management systems (BMSs) are required. The current design and functionality of BMSs suffer from a few critical drawbacks including low computational capability and limited data storage. Recently, there has been some effort in researching and developing smart BMSs utilizing the cloud platform. A cloud-based BMS would be able to solve the problems of computational capability and data storage in the current BMSs. It would also lead to more accurate and reliable battery algorithms and allow the development of other complex BMS functions. This study reviews the concept and design of cloud-based smart BMSs and provides some perspectives on their functionality and usability as well as their benefits for future battery applications. The potential division between the local and cloud functions of smart BMSs is also discussed. Cloud-based smart BMSs are expected to improve the reliability and overall performance of LIB systems, contributing to the mass adoption of renewable energy.

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Blended spherical lithium iron phosphate cathodes for high energy density lithium–ion batteries

Cited by 23 publications

References 34 publications

Understanding rapid charge and discharge in nano-structured lithium iron phosphate cathodes

Understanding rapid charge and discharge in nano-structured lithium iron phosphate cathodes

A Review of Battery Materials as CDI Electrodes for Desalination

Concept Review of a Cloud-Based Smart Battery Management System for Lithium-Ion Batteries: Feasibility, Logistics, and Functionality

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