A new cell-to-cell fast balancing circuit for Lithium-Ion batteries in Electric Vehicles and Energy Storage System

Pham, Van‐Long; Nguyen, Thanh-Tung; Tran, Duc-Hung; Vu, Van-Binh; Choi, Woojin

doi:10.1109/ipemc.2016.7512684

Cited by 14 publications

(9 citation statements)

References 7 publications

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“…This method is known as a non‐dissipative balancing technique which uses storage elements such as capacitors or inductors which transfer the energy from higher charge cell to lower charge cell until all the cells are balanced 40,41 . This method can be classified based on capacitors, inductors, and power electronic converters 42 .…”

Section: Active Cell Balancing Techniquementioning

confidence: 99%

Overview of cell balancing methods for Li‐ion battery technology

Hemavathi

2020

Energy Storage

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Li‐ion batteries are influenced by numerous features such as over‐voltage, undervoltage, overcharge and discharge current, thermal runaway, and cell voltage imbalance. One of the most significant factors is cell imbalance which varies each cell voltage in the battery pack overtime and hence decreases battery capacity rapidly. To increase the lifetime of the battery pack, the battery cells should be frequently equalized to keeps up the difference between the cells as small as possible. There are different techniques of cell balancing have been presented for the battery pack. It is classified as passive and active cell balancing methods based on cell voltage and state of charge (SOC). The passive cell balancing technique equalizing the SOC of the cells by the dissipation of energy from higher SOC cells and formulates all the cells with similar SOC equivalent to the lowest level cell SOC. The active cell balancing transferring the energy from higher SOC cell to lower SOC cell, hence the SOC of the cells will be equal. This review article introduces an overview of different proposed cell balancing methods for Li‐ion battery can be used in energy storage and automobile applications.

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Section: Active Cell Balancing Techniquementioning

confidence: 99%

Overview of cell balancing methods for Li‐ion battery technology

Hemavathi

2020

Energy Storage

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“…In recent years, there have been many new applications which aim to use more electricity as the main energy. There are many types of batteries and techniques that are developing to connect many cells in series and parallel for the high power applications [59][60][61][62]. Therefore, this part aims to propose the TAB converter for new potential applications which use the storage system.…”

Section: Future Applications With Batterymentioning

confidence: 99%

Applications of Triple Active Bridge Converter for Future Grid and Integrated Energy Systems

Pham

Wãda

2020

Energies

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Renewable energy systems and electric vehicles (EVs) are receiving much attention in industrial and scholarly communities owing to their roles in reducing pollutant emissions. Integrated energy systems (IES), which connect different types of renewable energies and storages, have become common in many applications, such as the grid-connected photovoltaic (PV) and battery systems, fuel cells and battery/supercapacitor in EVs. The advantages of all energy sources are maximized by utilizing connection and control strategies. Because many storage systems and household loads are mainly direct current (DC) types, the DC grid has considerable potential for increasing the efficiency of distribution grids in the future. In IES and future DC grid systems, the triple active bridge (TAB) converter is an isolated bidirectional DC-DC converter that has many advantages as a core circuit. Therefore, this paper reviews the characteristics of the TAB converter in current applications and suggests next-generation applications. First, the characteristics and operation modes of the TAB converter are introduced. An overview of all current applications of the TAB converter is then presented. The advantages and challenges of the TAB converter in each application are discussed. Thereafter, the potential future applications of the TAB converter with an adaptable power transmission design are presented.

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“…A direct cell-to-cell method using a DC-DC converter is proposed and discussed in [25,26]. A low-cost balancing circuit is proposed by using relays in [25].…”

Section: Introductionmentioning

confidence: 99%

“…A low-cost balancing circuit is proposed by using relays in [25]. The proposed circuit in [26] achieves better performance but has a higher cost. Based on the previous study, in this research a new cell-to-cell balancing circuit for lithium-ion battery strings is proposed to overcome the drawbacks of the conventional cell balancing methods.…”

Section: Introductionmentioning

confidence: 99%

A Low Cost and Fast Cell-to-Cell Balancing Circuit for Lithium-Ion Battery Strings

2020

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This paper proposes a fast cell-to-cell balancing circuit for lithium-ion battery strings. The proposed method uses only one push-pull converter to transfer energy between high-and low-voltage cells directly for a fast balancing speed. The switch network for selecting a certain pair of cells is implemented using relays to achieve a low cost. The control circuit is composed of a battery-monitoring IC and a digital signal processor (DSP) to monitor the cell voltage and to protect the batteries. In order to prove the validity of the proposed method, a prototype circuit is built with twelve lithium-ion batteries in a string. The experimental results show that it takes only 50 min to balance twelve lithium-ion batteries during the charge with 89.5% maximum efficiency. The outstanding performance of the proposed cell balancing circuit is verified through its comparison with other methods in terms of several factors, such as the balancing time and the implementation cost.

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A new cell-to-cell fast balancing circuit for Lithium-Ion batteries in Electric Vehicles and Energy Storage System

Cited by 14 publications

References 7 publications

Overview of cell balancing methods for Li‐ion battery technology

Overview of cell balancing methods for Li‐ion battery technology

Applications of Triple Active Bridge Converter for Future Grid and Integrated Energy Systems

A Low Cost and Fast Cell-to-Cell Balancing Circuit for Lithium-Ion Battery Strings

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