Zero-Strain Intercalation Cathode for Rechargeable Li-Ion Cell

Cho, Jaephil; Kim, Yong Jeong; Kim, Tae‐Joon; Park, Byungwoo

doi:10.1002/1521-3773(20010917)40:18<3367::aid-anie3367>3.0.co;2-a

Cited by 478 publications

(359 citation statements)

References 14 publications

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“…Commercial lithium ion batteries are cobalt-based and limited to applications in small portable electronic devices due to the practical capacity limitation [1][2][3], cost and safety issues [4,5]. Future energy storage devices need advanced materials to fulfill the higher demands in terms of energy density and safety, while reducing the cost and environmental concerns.…”

Section: Introductionmentioning

confidence: 99%

Enhanced electrochemical performance of <30 nm thin LiMnPO4 nanorods with a reduced amount of carbon as a cathode for lithium ion batteries

Kwon

Fromm

2012

Electrochimica Acta

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5-10 nm thin rod shaped LiMnPO 4 nanoparticles are synthesized by an improved thermal decomposition method. The synthesis parameters such as the concentration of surfactants, reaction temperature and time, as well as the presence of a solvent play a critical role in the formation of spherical, thin or thick nanorods, and needle-shaped particles of LiMnPO 4 . A washing procedure to efficiently eliminate the surfactants attached to the surface of LiMnPO 4 nanoparticles is presented, avoiding thermal treatment at high temperatures. A nanocomposite LiMnPO 4 electrode provides a discharge capacity of 165 mAh/g at 1/40 C and 66 mAh/g at 1 C with only 10 wt% of total carbon additive. The characteristics of as-synthesized and low amount of carbon coated LiMnPO 4 are described as well as their electrochemical properties.

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Section: Introductionmentioning

confidence: 99%

Enhanced electrochemical performance of <30 nm thin LiMnPO4 nanorods with a reduced amount of carbon as a cathode for lithium ion batteries

Kwon

Fromm

2012

Electrochimica Acta

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“…In particular, a recent study reported that treating the surface of the cathode material particles with insulating substances such as acid, fluorinate, TiO 2 , Al 2 O 3 , AlPO 4 , and ZrO 2 , helped reduce the irreversible capacity during charge and discharge and improve not only the rate capability but also the cycle performance. [9][10][11][12][13][14] Other than this method, there have been reports of improvement in the rate capability and cycle performance through the prevention of Ni/Li substitution in Li-layer by adding excess lithium to Li 1+x Ni 0. 4 OH as chelating agents were fed into the reactor in appropriate amounts and pH was maintained in the range of 11-11.5 during the process.…”

Section: -8)mentioning

confidence: 99%

Optimization of Lithium in Li_1+x[Mn_0.720Ni_0.175Co_0.105]O₂as a Cathode Material for Lithium Ion Battery

Kim¹,

Jeong²,

Jin³

et al. 2011

Journal of Electrochemical Science and Technology

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Different amounts of excess lithium in the range of x = 0~0.3 were added to Li 1+x [Mn 0.720 Ni 0.175 Co 0.105 ]O 2 cathode materials synthesized using the co-precipitation method to investigate its microstructure and electrochemical properties. Pure layered structure without impurities was confirmed in the XRD pattern analysis and increasing peak intensity of Li 2 MnO 3 was observed along with the addition of over 0.2 mol Li. The initial discharge capacity of the stoichiometric composition was determined to be 246 mAh/g, while the discharge capacity of the addition of 0.1 mol Li was obtained to be 241 mAh/g, which was not significantly different from that of the stoichiometric composition. However, the discharge capacities decreased dramatically after the addition of 0.2 and 0.3 mol Li to 162 mAh/g and 146 mAh/g, respectively. In the rate capability test, the active Li 1+x [Mn 0.720 Ni 0.175 Co 0.105 ]O 2 cathode material of the stoichiometric composition showed a dramatic decrease in its discharge capacity with increasing C-rate, as evidenced by the result that the discharge capacity at 5C was 13% compared with 0.1C. On the other hand, the discharge capacity of compositions containing excess lithium was improved at higher current rates. The cycling test showed that the composition containing an excess of 0.1 mol Li had the most outstanding capacity retention.

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“…Because the usable capacity caused by exhausting only a half lithium ion in the structure is limited, the attempts of ceramics coating such as zirconia to LCO particle has been reported. [1] Nowadays, on the other hands, cobalt-free cathode is needed, because cobalt is rare and expensive from the view point of adopting for large battery and mass production. Spinel-type lithium manganese oxide (LMO) and olivine-type lithium iron phosphate (LFP) have also attracted increasing attention as a cathode material.…”

Section: Introductionmentioning

confidence: 99%

Nano and Submicron Olivine Synthesized by Hydrothermal Process

Togo¹,

Yagi²,

Nakahira³

2017

dtetr

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ABSTRACT Development of cobalt free olivine material as a cathode for lithium ion battery was carried out. Especially, in this study, Mn substituted olivine was synthesized by hydrothermal process. With the reaction conditions, such as hydrothermal reaction temperature and times, the morphology and particle size were variable. Under the optimum synthetic condition, finer olivine particle was obtained by hydrothermal process. In addition, the effect of Mn addition on the microstructure of olivine was investigated.

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Zero-Strain Intercalation Cathode for Rechargeable Li-Ion Cell

Cited by 478 publications

References 14 publications

Enhanced electrochemical performance of <30 nm thin LiMnPO4 nanorods with a reduced amount of carbon as a cathode for lithium ion batteries

Enhanced electrochemical performance of <30 nm thin LiMnPO4 nanorods with a reduced amount of carbon as a cathode for lithium ion batteries

Optimization of Lithium in Li_1+x[Mn_0.720Ni_0.175Co_0.105]O₂as a Cathode Material for Lithium Ion Battery

Nano and Submicron Olivine Synthesized by Hydrothermal Process

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Zero-Strain Intercalation Cathode for Rechargeable Li-Ion Cell

Cited by 478 publications

References 14 publications

Enhanced electrochemical performance of <30 nm thin LiMnPO4 nanorods with a reduced amount of carbon as a cathode for lithium ion batteries

Enhanced electrochemical performance of <30 nm thin LiMnPO4 nanorods with a reduced amount of carbon as a cathode for lithium ion batteries

Optimization of Lithium in Li1+x[Mn0.720Ni0.175Co0.105]O2as a Cathode Material for Lithium Ion Battery

Nano and Submicron Olivine Synthesized by Hydrothermal Process

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About

Optimization of Lithium in Li_1+x[Mn_0.720Ni_0.175Co_0.105]O₂as a Cathode Material for Lithium Ion Battery