Enabling High-Temperature and High-Voltage Lithium-Ion Battery Performance through a Novel Cathode Surface-Targeted Additive

2021 ◽  
Author(s):  
Noah M. Johnson ◽  
Zhenzhen Yang ◽  
Ira Bloom ◽  
Zhengcheng Zhang
Keyword(s):  
High Temperature ◽  
Lithium Ion Battery ◽  
High Voltage ◽  
Cathode Surface ◽  
Lithium Ion

Ultrahigh capacity and cyclability of dual-phase TiO2 nanowires with low working potential at room and subzero temperatures

2021 ◽  
Author(s):  
Dongmei Lin ◽  
Linlong Lyu ◽  
Kaikai Li ◽  
Guohua Chen ◽  
Haimin Yao ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
High Voltage ◽  
Lithium Ion ◽  
Dual Phase ◽  
Tio2 Nanowires ◽  
Subzero Temperatures

The commercialization of TiO2 materials for lithium-ion battery (LIB) anodes has been seriously limited due to unsatisfactory capacities and high voltage plateaus vs Li/Li+ (~ 1.75 V). In this work,...

High-voltage and free-standing poly(propylene carbonate)/Li6.75La3Zr1.75Ta0.25O12 composite solid electrolyte for wide temperature range and flexible solid lithium ion battery

2017 ◽  
Vol 5 (10) ◽  
pp. 4940-4948 ◽  
Author(s):  
Jianjun Zhang ◽  
Xiao Zang ◽  
Huijie Wen ◽  
Tiantian Dong ◽  
Jingchao Chai ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Lithium Ion Battery ◽  
High Voltage ◽  
Wide Temperature Range ◽  
Lithium Battery ◽  
Lithium Ion ◽  
Free Standing ◽  
Composite Solid Electrolyte ◽  
Poly Propylene ◽  
Composite Solid

PPC/LLZTO composite solid electrolyte was developed for a flexible solid lithium battery.

Preparation of Regenerated Cathode Material Lithium Nickel Cobalt Oxide LiNi0.7Co0.3O2 Form Spent Lithium-Ion Battery

2019 ◽  
Vol 944 ◽  
pp. 1179-1186 ◽  
Author(s):  
Yue Hua Wang ◽  
Li Wen Ma ◽  
Yun He Zhang ◽  
Zhao Jie Huang ◽  
Xiao Li Xi
Keyword(s):  
High Temperature ◽  
Cathode Material ◽  
Lithium Ion Battery ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Lithium Hydroxide ◽  
Nickel Cobalt ◽  
Aluminum Ions ◽  
Nickel Cobalt Oxide ◽  
Lithium Nickel Cobalt Oxide

With the development of new energy vehicles, urgent issues have attracted considerable attention. Some power batteries have entered the scrapping period, with the imperative recycling of used power batteries. Some studies have predicted that by 2020, the amount of power lithium battery scrap will reach 32.2 GWh, corresponding to ~500,000 tons, and by 2023, the scrap will reach 101 GWh, corresponding to ~1.16 million tons. In this study, nickel-cobalt-lithium LiNi0.7Co0.3O2cathode materials are regenerated from spent lithium-ion battery cathode materials as the raw material, which not only aids in the reduction of pressure on the environment but also leads to the recycling of resources. First, extraction is employed using extracting agent p204 to remove aluminum ions from an acid leaching solution. Extraction conditions for aluminum ions are: include a phase ratio of 1:2,a pH of 3, an extractant concentration of 30%, and a saponification rate of 70%.Next, the precursor was prepared by co-precipitation using sodium hydroxide and ammonia water as the precipitant and complexion agents, respectively; hence, the cathode material can be uniformly mixed at the atomic level. The precursor and lithium hydroxide were subjected to calcination at high temperature using a high-temperature solid-phase method. The Calcination conditions include an air atmosphere ; a calcination temperature of 800° °C ; a calcination time of 15 h, an n (precursor): n (lithium hydroxide) ratio of 1:1.1.The Thermogravimetric analysis revealed that the synthesis temperature should not exceed 850°C. X-ray diffraction analysis, scanning electron microscopy, and energy spectrum analysis of the cathode material revealed a composition comprising Li, Ni, and Co oxides. After analysis, the material obtained is lithium nickel-cobalt-oxide, LiNi0.7Co0.3O2, which is a positive electrode material with good crystallinity and a regular layered structure.

Sign in / Sign up

Export Citation Format

Share Document