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Title: On state-of-charge determination for lithium-ion batteries

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Journal Article: Publisher's Accepted Manuscript
Journal Name:
Journal of Power Sources
Additional Journal Information:
Journal Volume: 348; Journal Issue: C; Related Information: CHORUS Timestamp: 2018-01-09 02:48:06; Journal ID: ISSN 0378-7753
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Citation Formats

Li, Zhe, Huang, Jun, Liaw, Bor Yann, and Zhang, Jianbo. On state-of-charge determination for lithium-ion batteries. Netherlands: N. p., 2017. Web. doi:10.1016/j.jpowsour.2017.03.001.
Li, Zhe, Huang, Jun, Liaw, Bor Yann, & Zhang, Jianbo. On state-of-charge determination for lithium-ion batteries. Netherlands. doi:10.1016/j.jpowsour.2017.03.001.
Li, Zhe, Huang, Jun, Liaw, Bor Yann, and Zhang, Jianbo. Sat . "On state-of-charge determination for lithium-ion batteries". Netherlands. doi:10.1016/j.jpowsour.2017.03.001.
title = {On state-of-charge determination for lithium-ion batteries},
author = {Li, Zhe and Huang, Jun and Liaw, Bor Yann and Zhang, Jianbo},
abstractNote = {},
doi = {10.1016/j.jpowsour.2017.03.001},
journal = {Journal of Power Sources},
number = C,
volume = 348,
place = {Netherlands},
year = {Sat Apr 01 00:00:00 EDT 2017},
month = {Sat Apr 01 00:00:00 EDT 2017}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.jpowsour.2017.03.001

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Cited by: 9works
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  • With increasing demand for electrical power on a distribution grid lacking storage capabilities, utilities and project developers must stabilize what is currently still intermittent energy production. In fact, over half of utility executives say “the most important emerging energy technology” is energy storage. Advanced, low-cost battery designs are providing promising stationary storage solutions that can ensure reliable, high-quality power for customers, but research challenges and questions lefts. Have lithium-ion batteries (LIBs) reached their technical limit? The industry demands are including high costs, inadequate energy densities, long recharge times, short cycle-life times and safety must be continually addressed. Safety is stillmore » the main problem on developing the lithium ion battery.The safety issue must be considered from several aspects, since it would become serious problems, such as an explosion in a Japan Airlines 787 Dreamliner’s cargo hold, due to the battery problem. The combustion is mainly due to the leakage or shortcut of the electrodes, caused by the liquid electrolyte and polymer separator. For this reason, the research on solid electrolyte for replacing the existing liquid electrolyte is very important. The materials used in existing lithium ion battery, such as a separator and liquid electrolyte must be replaced to new solid electrolytes, solid materials that exhibits high ionic conductivity. Due to these reasons, research on solid state ionics materials have been vastly growing worldwide, with the main aim not only to search new solid electrolyte to replace the liquid one, but also looking for low cost materials and environmentally friendly. A revolutionary paradigm is also required to design new stable anode and cathode materials that provide electrochemical cells with high energy, high power, long lifetime and adequate safety at competitive manufacturing costs. Lithium superionic conductors, which can be used as solid electrolytes, promise the potential to replace organic liquid electrolytes and thereby improve the safety of next-generation high-energy batteries. Li{sub 3}PO{sub 4} has been proved to be a good candidate for solid electrolyte, due to its easy in preparation, low cost, high melting temperature and good compatibility with the electrode materials. In the present work, Li{sub 3}PO{sub 4} has been prepared by wet chemical reaction, a simple method with the advantage of recycling a waste product H{sub 3}PO{sub 4}. The crystal structure has been characterized by both neutron and x-ray diffraction. The use of neutron scattering plays important role on observing the light atoms such as lithium ion. The x-ray diffraction results showed the crystal structure of orthorhombic phase P m n 21 (31), that belongs to the β-Li{sub 3}PO{sub 4}, with the lattice parameters are a = 6.123872, b = 5.250211, c = 4.876378. The conductivity of β-Li{sub 3}PO{sub 4} was around 10{sup −8} S/cm. Furthermore, the future application of the solid electrolyte layer in lithium ion battery will also be considered. It is concluded that the used of local resources on producing the solid electrolyte Li{sub 3}PO{sub 4} for lithium ion battery will give more added values to the researches and national industry.« less
  • No abstract prepared.
  • A phase-field model is developed to investigate the influence of microstructure, thermodynamic and kinetic properties, and charging conditions on charged particle transport in nanocomposite electrodes. Two sets of field variables are used to describe the microstructure. One is comprised of the order parameters describing size, orientation and spatial distributions of nanoparticles, and the other is comprised of the concentrations of mobile species. A porous nanoparticle microstructure filled with electrolyte is taken as a model system to test the phase-field model. Inhomogeneous and anisotropic dielectric constants and mobilities of charged particles, and stresses associated with lattice deformation due to Li-ion insertion/extractionmore » are considered in the model. Iteration methods are used to find the elastic and electric fields in an elastically and electrically inhomogeneous medium. The results demonstrate that the model is capable of predicting charge separation associated with the formation of a double layer at the electrochemical interface between solid and electrolyte, and the effect of microstructure, inhomogeneous and anisotropic thermodynamic and kinetic properties, charge rates, and stresses on voltage versus current density and capacity during charging and discharging.« less
  • For LiMO 2 (M=Co, Ni, Mn) cathode materials, lattice parameters, a(b), contract during charge. Here we report such changes in opposite directions for lithium molybdenum trioxide (Li 2MoO 3). A ‘unit cell breathing’ mechanism is proposed based on crystal and electronic structural changes of transition metal oxides during charge-discharge. Metal–metal bonding is used to explain such ‘abnormal’ behaviour and a generalized hypothesis is developed. The expansion of the metal-metal bond becomes the controlling factor for a(b) evolution during charge, in contrast to the shrinking metal-oxygen bond as controlling factor in ‘normal’ materials. The cation mixing caused by migration of molybdenummore » ions at higher oxidation state provides the benefits of reducing the c expansion range in the early stage of charging and suppressing the structure collapse at high voltage charge. These results may open a new strategy for designing layered cathode materials for high energy density lithium-ion batteries.« less