• Title/Summary/Keyword: Li-ion(secondary) batteries

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Characteristic Analysis of Lithium-ion Battery and Lead-acid Battery using Battery Simulator (배터리 시뮬레이터를 이용한 리튬이온 배터리와 납축전지 특성분석)

  • Yongho Yoon
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.24 no.2
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    • pp.127-132
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    • 2024
  • Recently, secondary batteries, commonly known as rechargeable batteries, find widespread applications across various industries. Particularly valued for their compact and lightweight characteristics, they play a crucial role in diverse portable electronic devices such as smartphones, laptops, and tablets, offering high energy density and efficient charge-discharge capabilities. Moreover, they serve as vital components in electric vehicles and contribute significantly to the field of renewable energy as part of Energy Storage Systems(ESS). However, despite advancements in this technology, issues such as reduced lifespan, cracking, damage, and even the risk of fire can arise due to excessive charging and discharging of secondary batteries. To address these challenges, Battery Management System(BMS) are employed to protect against overcharging and improve overall performance. Nevertheless, understanding the protective range settings of BMS using lithium-ion batteries, the most commonly used secondary batteries, and lead-acid batteries can be challenging. Therefore, this paper aims to utilize a battery charge-discharge tester and simulator to investigate the charging and discharging characteristics of lithium-ion batteries and lead-acid batteries, addressing the associated challenges of reduced lifespan, cracking, damage, and fire hazards in secondary batteries.

Recent Research Trend of Zinc-ion Secondary Battery Materials for Next Generation Batterie (차세대 이차전지용 아연 이온 이차전지 소재 연구 개발 동향)

  • Jo, Jeonggeun;Kim, Jaekook
    • Ceramist
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    • v.21 no.4
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    • pp.312-330
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    • 2018
  • Energy storage/conversion has become crucial not only to meet the present energy demand but also more importantly to sustain the modern society. Particularly, electrical energy storage is critical not only to support electronic, vehicular and load-levelling applications but also to efficiently commercialize renewable energy resources such as solar and wind. While Li-ion batteries are being intensely researched for electric vehicle applications, there is a pressing need to seek for new battery chemistries aimed at stationary storage systems. In this aspect, Zn-ion batteries offer a viable option to be utilized for high energy and power density applications since every intercalated Zn-ion yields a concurrent charge transfer of two electrons and thereby high theoretical capacities can be realized. Furthermore, the simplicity of fabrication under open-air conditions combined with the abundant and less toxic zinc element makes aqueous Zn-ion batteries one of the most economical, safe and green energy storage technologies with prospective use for stationary grid storage applications. Also, Zn-ion batteries are very safe for next-generation technologies based on flexible, roll-up, wearable implantable devices the portable electronics market. Following this advantages, a wide range of approaches and materials, namely, cathodes, anodes and electrolytes have been investigated for Zn-ion batteries applications to date. Herein, we review the progresses and major advancements related to aqueous. Zn-ion batteries, facilitating energy storage/conversion via $Zn^{2+}$ (de)intercalation mechanism.

The electrochemical Characteristics on the Anode Material of Lithium Ion Secondary Batteries with Discharge Voltage (방전전압에 따른 리튬 이온 2차전지용 음극물질의 전기화학적 특성)

  • Park, Jong-Gwang;Han, Tae-Hui;Jeong, Dong-Cheol;Im, Seong-Hun;Han, Byeong-Seong
    • The Transactions of the Korean Institute of Electrical Engineers C
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    • v.49 no.6
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    • pp.328-334
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    • 2000
  • A lithium ion secondary battery using carbon as a negative electrode has been developed. Further improvements to increase the cell capacity are expected by modifying the structure of the carbonaceous material. There are hopes for the development of large capacity lithium ion secondary batteries with long cycle, high energy density, high power density, and high energy efficiency. In the present paper, needle cokes from petroleum were examined as an anode of lithium ion secondary battery. Petroleum cokes, MCL(Molten Caustic Leaching) treated in Korea Institute Energy Research, were carbonized at various temperatures of 0, 500, 700, $19700^{\circ}C$ at heating rate of $2^{\circ}C$/min for lh. The electrolyte was used lM liPF6 EC/DEC (1:1). The voltage range of charge & discharge was 0.0V(0.05V) ~ 2.0V. The treated petroleum coke at $700^{\circ}C$ had an initial capacity over 560mAh.g which beyond the theoretical maximum capacity, 372mAh/g for LiC6. This phenomena suggests that carbon materials with disordered structure had higher cell capacity than that the graphitic carbon materials.

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Selective doping of Li-rich layered oxide cathode materials for high-stability rechargeable Li-ion batteries

  • Han, Dongwook;Park, Kwangjin;Park, Jun-Ho;Yun, Dong-Jin;Son, You-Hwan
    • Journal of Industrial and Engineering Chemistry
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    • v.68
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    • pp.180-186
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    • 2018
  • We report the discovery of Li-rich $Li_{1+x}[(Ni_{0.225}Co_{0.15}Mn_{0.625})_{1-y}V_y]O_2$ as a cathode material for rechargeable lithium-ion batteries in which a small amount of tetravalent vanadium ($V^{4+}$) is selectively and completely incorporated into the manganese sites in the lattice structure. The unwanted oxidation of vanadium to form a $V_2O_5-like$ secondary phase during high-temperature crystallization is prevented by uniformly dispersing the vanadium ions in coprecipitated $[(Ni_{0.225}Co_{0.15}Mn_{0.625})_{1-y}V_y](OH)_2$ particles. Upon doping with $V^{4+}$ ions, the initial discharge capacity (>$275mA\;h\;g^{-1}$), capacity retention, and voltage decay characteristics of the Li-rich layered oxides are improved significantly in comparison with those of the conventional undoped counterpart.

Effect of substituent and dopant on properties of $LiMn_2O_4$ as cathode materials for lithium ion secondary batteries

  • Lee, Dae-Jin;Wai, Yin-Loo;Jee, Mi-Jung;Bae, Hyun;Choi, Byung-Hyun
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2007.11a
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    • pp.294-294
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    • 2007
  • Spinel cathode material $LiMn_2O_4$ is currently studied as a promising cathode material for lithium ion secondary batteries for future applications because of it is low cost, easy to be prepared and capable to be operated in high voltage range. However as a cathode material, $LiMn_2O_4$ performs a poor capacity retention which leads to short cycle life. In this study, stoichiometric $LiMn_2O_4$ was synthesized with granulation method with ion substitution to stabilize its structure and niobium doping to improve its conductivity. These well-mixed powders were calcined at $850^{\circ}C$ for 6 hours and its properties were investigated. Correlations of dopant and electrochemical properties were examined as well.

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Effect of $Li_4Ti_5O_{12}$ coating layer on capacity retention of $LiMn_2O_4$ as cathode materials of lithium ion secondary batteries for HEV application (HEV용 리튬 이차전지 양극물질 $LiMn_2O_4$$Li_4Ti_5O_{12}$ 코팅에 따른 영향)

  • Wai, Yin-Loo;Choi, Byung-Hyun;Jee, Mi-Jung;Lee, Dae-Jin;Shin, Jae-Su;Song, Kwang-Ho
    • 한국신재생에너지학회:학술대회논문집
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    • 2007.11a
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    • pp.125-128
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    • 2007
  • In these recent years, low cost and stable battery electrode materials have been studied for HV/HEV application. Spinel cathode material $LiMn_2O_4$ is widely studied as a promising cathode material of lithium ion secondary batteries because of it is low cost, easily to be prepared and capable to be operated in high voltage range. In this study, $LiMn_2O_4$ was undergoing surface modification with spinel lithium titanium oxide by sol-gel method in order to enhance its capacity retention. Properties of both unmodified and surface-modified $LiMn_2O_4$ were characterized by XRD, SEM, particle size analyzer while their cycling performance was tested with charge and discharge tester.

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Fabrication of LiNiO2 using NiSO4 Recovered from NCM (Li[Ni,Co,Mn]O2) Secondary Battery Scraps and Its Electrochemical Properties (NCM(Li[Ni,Co,Mn]O2)계 폐 리튬이차전지로부터 NiSO4의 회수와 이를 이용한 LiNiO2 제조 및 전기화학적 특성)

  • Kwag, Yong-Gyu;Kim, Mi-So;Kim, Yoo-Young;Choi, Im-Sic;Park, Dong-Kyu;Ahn, In-Sup;Cho, Kwon-Koo
    • Journal of Powder Materials
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    • v.21 no.4
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    • pp.286-293
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    • 2014
  • The electrochemical properties of cells assembled with the $LiNiO_2$ (LNO) recycled from cathode materials of waste lithium secondary batteries ($Li[Ni,Co,Mn]O_2$), were evaluated in this study. The leaching, neutralization and solvent extraction process were applied to produce high-purity $NiSO_4$ solution from waste lithium secondary batteries. High-purity NiO powder was then fabricated by the heat-treatment and mixing of the $NiSO_4$ solution and $H_2C_2O_4$. Finally, $LiNiO_2$ as a cathode material for lithium ion secondary batteries was synthesized by heat treatment and mixing of the NiO and $Li_2CO_3$ powders. We assembled the cells using the $LiNiO_2$ powders and evaluated the electrochemical properties. Subsequently, we evaluated the recycling possibility of the cathode materials for waste lithium secondary battery using the processes applied in this work.