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Growing environmental pressure urges China to develop in a sustainable and low carbon way. We applied the Logarithmic Mean Divisia Index (LMDI) method and Tapio index to analyze the decoupling elasticity and effort index of industrial growth and CO2 emissions in China from 1996 to 2015. We found that the industry-related CO2 emissions in China expanded by around 1.5 times during the study period,...
The state-of-health (SOH) of a lithium-ion battery is a key parameter in battery management systems. However, current approaches to estimating the SOH of a lithium-ion battery are mainly offline or have not solved the accuracy and efficiency problems. This paper attempts to solve these problems. A dynamic information extraction method based on a fast discrete wavelet transform is proposed to greatly...
Physics-based model has been regarded as a promising alternative to equivalent circuit model due to its ability to describe internal electrochemical states of battery. However, the rigorous physics-based model, namely pseudo-two-dimensional (P2D) model, is too complicated for online application in embedded battery management system. In this paper, to simplify the P2D model, a series of polynomial...
Physics-based models for lithium-ion battery have been regarded as a promising alternative to equivalent circuit models due to their ability to describe internal electrochemical states of battery. However, the huge computational burden and numerous parameters of these models impede their application in embedded battery management system. To deal with the above problem, a reduced-order physics-based...
Li-ion batteries have been widely used as the power source of electric vehicles. However, the acquisition of precise state of charge via battery management system remains a problem. A root cause is the complex characteristics of battery polarization, which is affected by the load current. In order to improve the accuracy and reliability of battery state of charge estimation, this paper focuses on...
The key technology of a battery management system is to online estimate the battery states accurately and robustly. For lithium iron phosphate battery, the relationship between state of charge and open circuit voltage has a plateau region which limits the estimation accuracy of voltage-based algorithms. The open circuit voltage hysteresis requires advanced online identification algorithms to cope...
This study aims to explore the factors affecting public acceptance of CCS (carbon capture and storage) technologies in China. A survey based on online questionnaires and face-to-face interviews was conducted between September and December 2014. Findings show that, in China the public is still not fully aware of CCS technologies, compared with other renewable energy technologies, and indicates a slightly...
To improve battery uniformity as well as energy efficiency and time efficiency, a SOC (state of charge)-based equalization by AGA (adaptive genetic algorithm) is proposed on basis of two-stage DC/DC converters. The simulation results indicate that compared with FLC (fuzzy logic controller) equalization, the standard deviation of final SOC is improved by 78.7% while energy efficiency is improved by...
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