A high capacity thiospinel cathode for Mg batteries

2016 ◽  
Vol 9 (7) ◽  
pp. 2273-2277 ◽  
Author(s):  
Xiaoqi Sun ◽  
Patrick Bonnick ◽  
Victor Duffort ◽  
Miao Liu ◽  
Ziqin Rong ◽  
...  
Keyword(s):  
Cathode Material ◽  
High Capacity ◽  
Capacity Retention ◽  
Full Cell

A Mg full cell with a thiospinel cathode material shows 190 mA h g−1 capacity and relatively stable capacity retention.

An inorganic–organic nanocomposite calix[4]quinone (C4Q)/CMK-3 as a cathode material for high-capacity sodium batteries

2017 ◽  
Vol 4 (11) ◽  
pp. 1806-1812 ◽  
Author(s):  
Shibing Zheng ◽  
Jinyan Hu ◽  
Weiwei Huang
Keyword(s):  
Cathode Material ◽  
Discharge Capacity ◽  
High Capacity ◽  
Initial Discharge Capacity ◽  
Capacity Retention ◽  
Initial Discharge ◽  
Sodium Batteries

A novel high-capacity cathode material C4Q/CMK-3 for SIBs shows an initial discharge capacity of 438 mA h g−1 and a capacity retention of 219.2 mA h g−1 after 50 cycles.

scholarly journals Ultrahigh Capacity Retention of Li2ZrO3-Coated Ni-rich LNCM811 Cathode Material through Covalent Interfacial Engineering

2021 ◽  
Author(s):  
Zhangxian Chen ◽  
Qiuge Zhang ◽  
Weijian Tang ◽  
Zhaoguo Wu ◽  
Juxuan Ding ◽  
...  
Keyword(s):  
Cathode Material ◽  
Lithium Ion Battery ◽  
Cathode Materials ◽  
High Capacity ◽  
Lithium Ion ◽  
Side Reaction ◽  
Capacity Retention ◽  
Interfacial Engineering ◽  
Electrochemical Capacity ◽  
Electrochemical Cycling

Nickel-rich LiNiCoMnO (LNCM811) is a promising lithium-ion battery cathode material, whereas the surface-sensitive issues (i.e., side reaction and oxygen loss) occurring on LNCM811 particles significantly degrade their electrochemical capacity retentions. A uniform LiZrO coating layer can effectively mitigate the problem by preventing these issues. Instead of the normally used weak hydrogen-bonding interaction, we present a covalent interfacial engineering for the uniform LiZrO coating on LiNiCoMnO materials. Results indicate that the strong covalent interactions between citric acid and NiCoMn(OH) precursor effectively promote the adsorption of ZrO coating species on NiCoMn(OH) precursor, which is eventually converted to uniform LiZrO coating layers of about 7 nm after thermal annealing. The uniform LiZrO coating endows LNCM811 cathode materials with an exceptionally high capacity retention of 98.7% after 300 cycles at 1 C. This work shows the great potential of covalent interfacial engineering for improving the electrochemical cycling capability of Ni-rich lithium-ion battery cathode materials.

scholarly journals Na0.44MnO2/Polyimide Aqueous Na-ion Batteries for Large Energy Storage Applications

2021 ◽  
Vol 8 ◽  
Author(s):  
Satyanarayana Maddukuri ◽  
Amey Nimkar ◽  
Munseok S. Chae ◽  
Tirupathi Rao Penki ◽  
Shalom Luski ◽  
...  
Keyword(s):  
Energy Density ◽  
Electrochemical Performance ◽  
Coulombic Efficiency ◽  
Aqueous Media ◽  
Sodium Perchlorate ◽  
High Capacity ◽  
Capacity Retention ◽  
Voltage Range ◽  
Full Cell ◽  
High Concentrations

Aqueous salt batteries with high concentrations of salt or water in salt aqueous systems have received considerable attention with focus on improving working voltage range and energy density. Here, the effect of NaClO4 salt concentration on the electrochemical performance and stability of tunnel-type Na0.44MnO2 (NMO) cathodes and organic polyimide (PI) derivative anodes was studied. High capacity retention and 100% coulombic efficiency were shown for NMO/PI full cell in saturated NaClO4 electrolyte. A high, stable capacity of 115 mAh/g was achieved for the PI anode material, and the full cell showed a stable capacity of 41 mAh/g at 2C rate for 430 cycles (calculated for the weight of NMO cathode). Even at a fast 5C rate, a discharge capacity of 33 mAh/g was maintained for 2,400 prolonged cycles with nearly 100% efficiency. The full cell device can achieve an average voltage of 1 V with energy density of 24 Wh/kg. This study highlights concentrated sodium perchlorate as a promising electrolyte solution for stabilization of electrodes and enhancement of electrochemical performance in aqueous media.

scholarly journals Hydrothermal Synthesis of Li2MnO3-Stabilized LiMnO2 as a Cathode Material for Li-Ion Battery

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Ngoc Hung Vu ◽  
Van-Duong Dao ◽  
Hong Ha Thi Vu ◽  
Nguyen Van Noi ◽  
Dinh Trinh Tran ◽  
...  
Keyword(s):  
Cathode Material ◽  
High Performance ◽  
Low Cost ◽  
High Capacity ◽  
Environmentally Benign ◽  
Li Ion Battery ◽  
Cycle Stability ◽  
Capacity Retention ◽  
Li Ion ◽  
Potential Strategy

Herein, we reported the composite structure of LiMnO2 and Li2MnO3 as a low-cost and environmentally benign cathode material. This composite with the main phase of LiMnO2 (90%) was synthesized by hydrothermal method at 220°C from LiOH and Mn(CH3COO)2 precursors. The obtained nanosized LiMnO2-LiMnO3 cathode material exhibits a high capacity of 265 mAh g-1 at C/10. The incorporation of Li2MnO3 into the LiMnO2 phase could stabilize the structure, leading to the improved cycle stability of the cathode. The capacity retention of the cathode was 93% after 80 cycles at C/2. Our results facilitate a potential strategy for developing high-performance cathode materials based on the Li-Mn-O system.

Spinel/Layered Heterostructured Cathode Material for High-Capacity and High-Rate Li-Ion Batteries

2013 ◽  
Vol 25 (27) ◽  
pp. 3722-3726 ◽  
Author(s):  
Feng Wu ◽  
Ning Li ◽  
Yuefeng Su ◽  
Haofang Shou ◽  
Liying Bao ◽  
...  
Keyword(s):  
Cathode Material ◽  
High Capacity ◽  
High Rate ◽  
Li Ion Batteries ◽  
Li Ion

Novel-shaped LiNi1/3Co1/3Mn1/3O2 prepared by a hydroxide coprecipitation method

2008 ◽  
Vol 80 (11) ◽  
pp. 2537-2542 ◽  
Author(s):  
Zexun Tang ◽  
Deshu Gao ◽  
Ping Chen ◽  
Zhaohui Li ◽  
Qiang Wu
Keyword(s):  
Specific Capacity ◽  
High Capacity ◽  
Coprecipitation Method ◽  
X Ray Diffraction ◽  
Capacity Retention ◽  
Uniform Size ◽  
Li Ion ◽  
New Generation ◽  
Optimized Conditions ◽  
Hydroxide Coprecipitation

Ni1/3Co1/3Mn1/3(OH)2, a precursor of LiNi1/3Co1/3Mn1/3O2 in new-generation Li-ion batteries, was prepared by a hydroxide coprecipitation method. Scanning electronic microscopy (SEM) micrographs reveal that the precursor particles thus obtained, show regular shape with uniform size under optimized conditions. X-ray diffraction (XRD) indicates that well-ordered layer-structured LiNi1/3Co1/3Mn1/3O2 was prepared after calcination at high temperature. The final product exhibited a spherical morphology with uniform size distribution (10 μm in diameter). At the terminal charging voltage of 4.3 and 4.5 V (vs. Li/Li+), the testing cells of LiNi1/3Co1/3Mn1/3O2 delivered a specific capacity of 161.2 and 184.1 mAh g-1, respectively. The high capacity retention of 98.0 and 96.1 % after charging to 4.3 and 4.5 V for 50 cycles, respectively, indicates that this material displays excellent cycling stability even at high cut-off voltage.

HIGH POWER PERFORMANCE OF MULTICOMPONENT OLIVINE CATHODE MATERIAL FOR LITHIUM-ION BATTERIES

2011 ◽  
Vol 04 (03) ◽  
pp. 299-303 ◽  
Author(s):  
ZHUO TAN ◽  
PING GAO ◽  
FUQUAN CHENG ◽  
HONGJUN LUO ◽  
JITAO CHEN ◽  
...  
Keyword(s):  
Transition Metal ◽  
Cathode Material ◽  
High Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Coprecipitation Method ◽  
Homogeneous Distribution ◽  
Power Performance ◽  
X Ray ◽  
Carbon Coated

A multicomponent olivine cathode material, LiMn0.4Fe0.6PO4 , was synthesized via a novel coprecipitation method of the mixed transition metal oxalate. X-ray diffraction patterns indicate that carbon-coated LiMn0.4Fe0.6PO4 has been prepared successfully and that LiMn0.4Fe0.6PO4/C is crystallized in an orthorhombic structure without noticeable impurity. Homogeneous distribution of Mn and Fe in LiMn0.4Fe0.6PO4/C can be observed from the scanning electron microscopy (SEM) and the corresponding energy dispersive X-ray spectrometry (EDS) analysis. Hence, the electrochemical activity of each transition metal in the olivine synthesized via coprecipitation method was enhanced remarkably, as indicated by the galvanostatic charge/discharge measurement. The synthesized LiMn0.4Fe0.6PO4/C exhibits a high capacity of 158.6 ± 3 mAhg-1 at 0.1 C, delivering an excellent rate capability of 122.6 ± 3 mAhg-1 at 10 C and 114.9 ± 3 mAhg-1 at 20 C.

Regeneration of high-capacity Ni-rich layered cathode material from spent lithium-ion batteries

2021 ◽  
pp. 103512
Author(s):  
Zaowen Zhao ◽  
Bao Zhang ◽  
Jingtian Zou ◽  
Pengfei Li ◽  
Zihang Liu ◽  
...  
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
High Capacity ◽  
Lithium Ion
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