Spinel LiMn2O4 Nanorods via Template–Engaged Method and as Cathode Materials for Li-Ion Batteries

2022 ◽  
Vol 905 ◽  
pp. 122-126
Author(s):  
Lin Li ◽  
Qing Liu ◽  
Jin Song Cheng ◽  
Rong Fei Zhao
Keyword(s):  
High Temperature ◽  
Rate Capability ◽  
Profile Measurement ◽  
Li Ion Batteries ◽  
Galvanostatic Charge ◽  
Temperature Performance ◽  
Li Ion ◽  
Discharge Profile ◽  
Superior Cycling Stability ◽  
Charge Discharge

Spinel LiMn2O4 nanorods were prepared by a hydrothermal method followed by solid-state lithiation. The produce β-MnO2 nanowire as template, and LiOH·H2O was used as lithium source. The spinel LiMn2O4 nanorods samples were characterized by SEM, XRD, (HR)TEM, and galvanostatic charge/discharge profile measurement. Compared with the LiMn2O4 nanoparticles, the LiMn2O4 nanorods showed superior cycling stability, better rate capability, good high temperature performance, and delivered a discharge capacity of 122 mAh/g (at 1 C, 100 cycles).

Li-rich layer-structured cathode materials for high energy Li-ion batteries

2014 ◽  
Vol 07 (04) ◽  
pp. 1430002 ◽  
Author(s):  
Liu Li ◽  
Kim Seng Lee ◽  
Li Lu
Keyword(s):  
Cathode Materials ◽  
High Capacity ◽  
Rate Capability ◽  
Reversible Capacity ◽  
High Energy ◽  
Li Ion Batteries ◽  
Practical Applications ◽  
Depth Study ◽  
Li Ion ◽  
Charge Discharge

Li -rich layer-structured x Li 2 MnO 3 ⋅ (1 - x) LiMO 2 ( M = Mn , Ni , Co , etc.) materials have attracted much attention due to their extraordinarily high reversible capacity as the cathode material in Li -ion batteries. To better understand the nature of this type of materials, this paper reviews history of development of the Li -rich cathode materials, and provides in-depth study on complicated crystal structures and reaction mechanisms during electrochemical charge/discharge cycling. Despite the fabulous capability at low rate, several drawbacks still gap this type of high-capacity cathode materials from practical applications, for instance the large irreversible capacity loss at first cycle, poor rate capability, severe voltage decay and capacity fade during electrochemical charge/discharge cycling. This review will also address mechanisms for these inferior properties and propose various possible solutions to solve above issues for future utilization of these cathode materials in commercial Li -ion batteries.

Synthesis and Measurement of SnO2@C/graphene Nanocomposite for Lithium Ion Batteries

2011 ◽  
Vol 396-398 ◽  
pp. 2330-2333
Author(s):  
Hai Teng Wang ◽  
Da Wei He ◽  
Yong Sheng Wang ◽  
Hong Peng Wu ◽  
Ji Gang Wang
Keyword(s):  
Anode Material ◽  
Tin Oxide ◽  
Synthesis Method ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
Galvanostatic Charge ◽  
Capacity Retention ◽  
Graphene Nanocomposite ◽  
Li Ion ◽  
Charge Discharge

SnO2@C/graphene nanocomposite was prepared via chemical synthesis method. The electrochemical performance of the SnO2@C/graphene nanocomposite as anode material was measured by galvanostatic charge/discharge cycling. As an anode material for Li ion batteries, the SnO2@C/graphene nanocomposite shows 823mAhg-1 and 732mAhg-1 capacities for the first discharge and charge, respectively, which is more than the theoretical capacity of tin oxide, and has good capacity retention with a capacity of 748mAhg-1 after 30 cycles. These results suggest that SnO2@C/graphene nanocomposite would be a promising anode material for lithium ion battery.

scholarly journals Charge/discharge profiles of LiFePO4 repurposing batteries based on UL 1974

2020 ◽  
Author(s):  
Hsien-Ching Chung
Keyword(s):  
Large Scale ◽  
Small Scale ◽  
Li Ion Batteries ◽  
Test Procedures ◽  
Safety Certification ◽  
Li Ion ◽  
And Performance ◽  
Discharge Profile ◽  
Charge Discharge ◽  
Second Use

Owing to the popularization of electric vehicles worldwide and the development of renewable energy supply, the Li-ion batteries are widely used from small-scale personal mobile products to large-scale energy storage systems. Recently, the number of retired power batteries has largely increased, causing environmental protection threats and waste of resources. Since most of the retired power batteries still possess about 80% initial capacity, the second use of them becomes a possible route to solve the emergency problem. The safety and performance are important in using these second-use repurposing batteries. Underwriters Laboratories (UL), a global safety certification company, published the standard for evaluating the safety and performance of repurposing batteries, i.e., UL 1974. In this work, the test procedures are designed according to UL 1974 and the charge/discharge profile dataset of the LiFePO4 repurposing batteries provided. Researchers/engineers can use the characteristic curves in estimating the repurposing batteries under UL 1974. Furthermore, the profile dataset can be applied in the model-based engineering of repurposing batteries, e.g., fitting the variables of an empirical model or validating the results of a theoretical model.

Achieving high-energy dual carbon Li-ion capacitors with unique low- and high-temperature performance from spent Li-ion batteries

2020 ◽  
Vol 8 (9) ◽  
pp. 4950-4959 ◽  
Author(s):  
M. L. Divya ◽  
Subramanian Natarajan ◽  
Yun-Sung Lee ◽  
Vanchiappan Aravindan
Keyword(s):  
High Temperature ◽  
Energy Storage ◽  
Negative Electrode ◽  
Lithium Ion ◽  
High Energy ◽  
Li Ion Batteries ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Temperature Performance ◽  
Li Ion

Graphite is the dominant choice as negative electrode since the commercialization of lithium-ion batteries, which could bring about a significant increase in demand for the material owing to its usage in forthcoming graphite-based energy storage devices.

scholarly journals Cerium doped LiNi0.5Mn1.5O4 composite with improved high temperature performance as a cathode material for Li-ion batteries

AIP Advances ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 025210 ◽  
Author(s):  
Sheng Li ◽  
Lifang Lan ◽  
Lu Lu ◽  
Yan Lu ◽  
Shaofang Li ◽  
...  
Keyword(s):  
High Temperature ◽  
Cathode Material ◽  
Li Ion Batteries ◽  
Temperature Performance ◽  
Li Ion

Ultrathin TiO2-B nanowires with enhanced electrochemical performance for Li-ion batteries

2015 ◽  
Vol 3 (18) ◽  
pp. 10038-10044 ◽  
Author(s):  
Tongbin Lan ◽  
Jie Dou ◽  
Fengyan Xie ◽  
Peixun Xiong ◽  
Mingdeng Wei
Keyword(s):  
Electrochemical Performance ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Rate ◽  
Li Ion Batteries ◽  
High Rate Capability ◽  
Li Ion ◽  
Excellent Cycling Stability ◽  
Enhanced Electrochemical Performance ◽  
Charge Discharge

Ultrathin TiO2-B nanowires with the most open channels exhibited large reversible lithium-ion charge–discharge capacity, excellent cycling stability and high-rate capability.

Enhanced Rate Capability and Cycling Stability of Novel Ammonium Vanadate Materials Used in Aqueous Li-Ion Batteries

2021 ◽  
Vol 35 (5) ◽  
pp. 4570-4576
Author(s):  
Najeeb ur Rehman Lashari ◽  
Mingshu Zhao ◽  
Qingyang Zheng ◽  
Xinhai He ◽  
Irfan Ahmed ◽  
...  
Keyword(s):  
Rate Capability ◽  
Cycling Stability ◽  
Li Ion Batteries ◽  
Ammonium Vanadate ◽  
Li Ion ◽  
Materials Used

scholarly journals In situ surface-enhanced Raman spectroelectrochemistry reveals the molecular conformation of electrolyte additives in Li-ion batteries

2021 ◽  
Author(s):  
Chenbo Zhu ◽  
Chenghao Fan ◽  
Emiliano Cortes ◽  
Wei Xie
Keyword(s):  
Molecular Conformation ◽  
Rate Capability ◽  
Cycle Performance ◽  
Li Ion Batteries ◽  
Electrolyte Additive ◽  
Electrolyte Additives ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Li Ion

We report on the mechanism of rhodamine B (RhB) acting as an electrolyte additive in Li/graphite cells. We show that cycle performance and rate capability of graphite is enhanced in...

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