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

Electronics ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 248 ◽  
Author(s):  
Van-Long Pham ◽  
Van-Tinh Duong ◽  
Woojin Choi
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Digital Signal Processor ◽  
Low Voltage ◽  
Low Cost ◽  
Lithium Ion ◽  
Cell Voltage ◽  
Maximum Efficiency ◽  
Transfer Energy ◽  
Cell Balancing

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.

Lignin-assisted exfoliation of molybdenum disulfide in aqueous media and its application in lithium ion batteries

Nanoscale ◽  
2015 ◽  
Vol 7 (21) ◽  
pp. 9919-9926 ◽  
Author(s):  
Wanshuang Liu ◽  
Chenyang Zhao ◽  
Rui Zhou ◽  
Dan Zhou ◽  
Zhaolin Liu ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Molybdenum Disulfide ◽  
Low Cost ◽  
Aqueous Media ◽  
Lithium Ion ◽  
Alkali Lignin

We disclose that alkali lignin is an excellent surfactant for direct aqueous exfoliation of MoS2and the exfoliated nanosheets have great potential for low-cost lithium-ion battery electrodes.

Facile synthesis of porous CoFe2O4 nanosheets for lithium-ion battery anodes with enhanced rate capability and cycling stability

RSC Advances ◽  
2014 ◽  
Vol 4 (52) ◽  
pp. 27488-27492 ◽  
Author(s):  
Xiayin Yao ◽  
Junhua Kong ◽  
Xiaosheng Tang ◽  
Dan Zhou ◽  
Chenyang Zhao ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Anode Materials ◽  
High Performance ◽  
Low Cost ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycling Stability ◽  
Facile Synthesis

Porous CoFe2O4 nanosheets are prepared via a low-cost and scalable process and are shown to be high-performance anode materials for lithium-ion batteries.

scholarly journals Lithium-ion batteries for sustainable energy storage: recent advances towards new cell configurations

2017 ◽  
Vol 19 (15) ◽  
pp. 3442-3467 ◽  
Author(s):  
Daniele Di Lecce ◽  
Roberta Verrelli ◽  
Jusef Hassoun
Keyword(s):  
Energy Storage ◽  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Low Cost ◽  
Sustainable Energy ◽  
Lithium Ion ◽  
High Energy ◽  
Environmental Compatibility ◽  
Recent Advances

Sustainable energy storage may be achieved by using advanced lithium-ion battery configurations with high energy, low cost and environmental compatibility.

scholarly journals Phytoremediation of Soil Contaminated with Lithium Ion Battery Active Materials—A Proof-of-Concept Study

Recycling ◽  
2020 ◽  
Vol 5 (4) ◽  
pp. 26
Author(s):  
Jonas Henschel ◽  
Maximilian Mense ◽  
Patrick Harte ◽  
Marcel Diehl ◽  
Julius Buchmann ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Inductively Coupled Plasma ◽  
Electrode Materials ◽  
Low Cost ◽  
Lithium Ion ◽  
Green Technology ◽  
Metal Species ◽  
Proof Of Concept ◽  
Inductively Coupled

The lithium-ion battery is the most powerful energy storage technology for portable and mobile devices. The enormous demand for lithium-ion batteries is accompanied by an incomplete recycling loop for used lithium-ion batteries and excessive mining of Li and transition metals. The hyperaccumulation of plants represents a low-cost and green technology to reduce environmental pollution of landfills and disused mining regions with low environmental regulations. To examine the capabilities of these approaches, the hyperaccumulation selectivity of Alyssum murale for metals in electrode materials (Ni, Co, Mn, and Li) was evaluated. Plants were cultivated in a conservatory for 46 days whilst soils were contaminated stepwise with dissolved transition metal species via the irrigation water. Up to 3 wt% of the metals was quantified in the dry matter of different plant tissues (leaf, stem, root) by means of inductively coupled plasma-optical emission spectroscopy after 46 days of exposition time. The lateral distribution was monitored by means of micro X-ray fluorescence spectroscopy and laser ablation-inductively coupled plasma-mass spectrometry, revealing different storage behaviors for low and high metal contamination, as well as varying sequestration mechanisms for the four investigated metals. The proof-of-concept regarding the phytoextraction of metals from LiNi0.33Co0.33Mn0.33O2 cathode particles in the soil was demonstrated.

scholarly journals A Simple Robust Active BMS for Lithium Ion Battery Stacks

2020 ◽  
Author(s):  
Thomas Conway
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Cell Voltage ◽  
Battery Management System ◽  
Battery Management ◽  
High Isolation ◽  
Electrical Vehicles ◽  
Isolation Transformer ◽  
Cell Balancing ◽  
Battery Module

A simple active battery management system for lithium ion battery stacks is described, that is robust and scalable. The architecture is based on an isolation unit consisting of a small equal turns ratio high isolation transformer with two diodes. One isolation unit is connected to each series connected cell in the battery stack and enables <b>both</b> accurate cell voltage monitoring and active cell balancing. The output of the isolation unit is completely galvanically isolated and thus suitable for high voltage packs with stringent safely requirements such as automotive and industrial electrical vehicles. Detailed measurements results are presented and a complete prototype for a LiFePO4 16s2p 2kWh battery module is constructed and its performance measured.<br>

A Simple Robust Active BMS for Lithium Ion Battery Stacks

2020 ◽  
Author(s):  
Thomas Conway
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Cell Voltage ◽  
Battery Management System ◽  
Battery Management ◽  
High Isolation ◽  
Electrical Vehicles ◽  
Isolation Transformer ◽  
Cell Balancing ◽  
Battery Module

A simple active battery management system for lithium ion battery stacks is described, that is robust and scalable. The architecture is based on an isolation unit consisting of a small equal turns ratio high isolation transformer with two diodes. One isolation unit is connected to each series connected cell in the battery stack and enables <b>both</b> accurate cell voltage monitoring and active cell balancing. The output of the isolation unit is completely galvanically isolated and thus suitable for high voltage packs with stringent safely requirements such as automotive and industrial electrical vehicles. Detailed measurements results are presented and a complete prototype for a LiFePO4 16s2p 2kWh battery module is constructed and its performance measured.<br>

Facile synthesis of Co9S8 nanosheets for lithium ion batteries with enhanced rate capability and cycling stability

2017 ◽  
Vol 41 (17) ◽  
pp. 9184-9191 ◽  
Author(s):  
Peng Long ◽  
Zhihua Zhang ◽  
Gang Peng ◽  
Qiang Zhang ◽  
Deng Liu ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Anode Materials ◽  
Low Cost ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycling Stability ◽  
Facile Synthesis ◽  
Rate Capacity ◽  
Battery Anode

Co9S8 nanosheets are prepared via a low-cost and scalable process and demonstrated as lithium-ion battery anode materials with excellent rate capacity and cycling stability.

Cell Equalization System for Li-Ion Battery Management Based on Fly-Back DC/AC Convertor

2014 ◽  
Vol 614 ◽  
pp. 227-232 ◽  
Author(s):  
Ding Song ◽  
Yue Hua Niu ◽  
Jie Xing ◽  
Jing Mei Zhu
Keyword(s):  
Lithium Ion Battery ◽  
Low Voltage ◽  
Lithium Ion ◽  
Cell Voltage ◽  
Experimental Result ◽  
Battery Life ◽  
Battery Management ◽  
Battery Cell ◽  
And Performance ◽  
Ac Converters

Cell equalization acts an important role on the battery life preserving for space application. This paper describes a lithium ion battery cell equalization method for spacecraft that employs innovative design features in power subsystem. The scheme proposed for balancing the battery pack relies on energy conversion devices as it uses transformers to move energy from high voltage cells to low voltage cells without energy loss. The method employs bi-directional forward DC-AC converters, plus a unique common node to provide autonomous charge distribution. It also supports individual cell voltage monitoring, telemetry data. Multisim is used to analyze the function and performance, experimental result proves that the method is effective for Lithium Ion battery equalization.

scholarly journals Hybrid perovskite-like iodobismuthates as low-cost and stable anode materials for lithium-ion battery applications

2021 ◽  
Vol 9 (5) ◽  
pp. 2689-2693
Author(s):  
Kingshuk Roy ◽  
Tianyue Li ◽  
Satishchandra Ogale ◽  
Neil Robertson
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Anode Materials ◽  
Low Cost ◽  
Lithium Ion ◽  
Environmentally Friendly ◽  
Hybrid Perovskite ◽  
New Type

Hybrid iodobismuthates give a new type of environmentally-friendly anode for lithium-ion batteries with impressive capacities, rate and stabilities.

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