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State of Charge (SoC) is the most important parameter to be estimated on a Battery Management System (BMS). Improper SoC management can cause faster battery degradation, reduce its operational lifetime and, on extreme cases of overcharge, it may lead to an explosion. In addition, batteries are complex electrochemical systems, and both the electrical components and chemical reactions vary significantly...
This paper aims to characterize pouch cells based on the parameters external pressure, temperature & C-rate and study its effect on capacity & open circuit voltage (OCV) of the cell. Lithium batteries based energy storage devices are gaining prominence in for its role in tapping the potential of renewable energy sources and electro-mobility. For large scale energy storage applications lithium...
Most of the Wireless sensors today are powered using lithium batteries. The need to detect the end of life for these batteries has increased in the recent past due to a large manufacturing variation between suppliers and storing practices. It has become a challenge to explore the ways to access the health of these batteries in field due to the difficulty in measuring the internal state variables of...
Electric vehicles (EVs) are expected to play an important role in sustainable mobility thanks to the efficient energy utilization and zero-emission when in use. The battery has a great impact on the performance of electric vehicles, basically determining the driving range. As a consequence, the choice of the battery technology and its effective utilization is of paramount importance. Li-ion chemistry...
This paper discuss about battery modeling as consideration for battery management system to protect the battery and improve the lifetime to maximum. BMS is a critical system of electric vehicle to keep the EV on the best quality. This system prevent the battery from over-charging, over-discharge, and over-heat so the battery will not be damaged.
Off gas from Li-ion batteries is becoming a growing concern because the volatile organics emitted are flammable and their unpredictable release represents a safety risk. Recent safety incidents involving Li-based battery chemistries have occurred across automotive, marine, electric grid, and aviation sectors and indicate a need to understand battery failure and the implications for control of the...
This paper aim is to present the implementation the monitoring system based on OBD reader, in order to read and compare the OBD CAN bus information's. The goal is to read the values of speed and other useful information during the cruise. This can be also helpful to improve the information's used in other applications. The goal of our work is to correlate these information's with the energy recovery...
Electric vehicle battery models are essential when performing analysis of EV systems. The battery package of electric vehicles is complicated and unpredictable because of its chemical based functioning. In this paper, a battery model is presented with a number of internal and external factors taken into account, including temperature, age and wear.
With the development of telecom industry, the solution of energy saving and CO2 emission reduction ha become a hot topic since competitiveness and socia responsibility is more and more important. According to data statistics, cooling system has consumed up to 50% of tota energy consumption to maintain battery temperature at around 25°C by air conditioner.
A lion-battery storage management system with energy feedback for LiFePO4 batteries was designed in this paper. This system contains energy balance unit, state of battery detection and CAN bus transmission. The MCU STM32 controls all data acquired from batteries and the main loop current detection. Each balance module uses ATMage16 as core and achieves the balance purpose based on synchronous rectification...
This paper describes the design and development of a cellular near-field power harvesting circuit. Its potential to independently power sensor systems without batteries is demonstrated and discussed. As universal criteria to decide which batteries in sensor systems can be directly replaced by the proposed power harvesting circuit, discharge characteristics of Lithium and Alkaline batteries were investigated...
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