Improve safety of high energy density LiNi1/3Co1/3Mn1/3O2/graphite battery using organosilicon electrolyte

Yan, Xiaodan; Zhang, Lingzhi; Lu, Jidian

doi:10.1016/j.electacta.2018.11.036

Cited by 18 publications

(9 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The era of new energy is right around the corner, with the breakthrough technologies revolutionizing the way we produce, distribute, and store the energies. , Lithium-ion batteries (LIBs), for instance, are benefitting the renewable energies such as wind and solar by supporting electrical grids and electric vehicles with powerful energy storage systems. , To meet the growing demand for clean energy and low carbon emission, next-generation LIBs with even higher energy density and a longer lifespan are intensively pursued . Thereby, the research of layered Ni-rich oxide cathodes LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM) is enforced because of their superior specific capacity (200–250 mAh g –1 ) and high operation voltage (4.0 V vs Li). − …”

Section: Introductionmentioning

confidence: 99%

Simultaneous Coating and Doping of a Nickel-Rich Cathode by an Oxygen Ion Conductor for Enhanced Stability and Power of Lithium-Ion Batteries

Wang

Liu

Ding

et al. 2019

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

With the rapid development of plug-in hybrid electric vehicles and electric vehicles, high-energy layered lithium nickel-rich oxides have received much attention, but there are still many challenges due to the inherent properties of materials. The poor cycling performance and initial capacity loss of the nickel-rich layered oxide are associated with the structural stability of the material and Li + /Ni 2+ cation disorder. Moreover, the synergistic effect of the vacancy of Li and Ni in the delithiation process aggravates the instability of oxygen, eventually resulting in the release of oxygen. It can cause damage to the stability of the structure and even cause safety issues. In this work, we report that Ce 0.8 Dy 0.2 O 1.9 solid electrolyte inhibits the release of oxygen and improves the structural stability and safety of the Ni-rich cathode material, which is rich in oxygen vacancies. Besides, Ni 2+ could be oxidized to Ni 3+ along with the strong oxidation of Ce 4+ doping into the bulk structure, which suppresses the Li + /Ni 2+ cation disorder and improves the initial Coulomb efficiency of the material. This study successfully designed a novel cathode material structure to provide a basis for the future development of layered lithium nickel-rich oxides, which can be used to improve the initial Coulomb efficiency and cycle life. KEYWORDS: layered lithium nickel-rich oxides, Ce 0.8 Dy 0.2 O 1.9 solid electrolyte, structural stability, Li + /Ni 2+ cation disorder, initial Coulomb efficiency

show abstract

Section: Introductionmentioning

confidence: 99%

Simultaneous Coating and Doping of a Nickel-Rich Cathode by an Oxygen Ion Conductor for Enhanced Stability and Power of Lithium-Ion Batteries

Wang

Liu

Ding

et al. 2019

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…[62] Zhang et al employed organosilicon and their functional derivatives as the high-voltage solvents or multifunctional electrolyte additive toward higher energy density and security. [63][64][65][66][67][68][69][70] Compared with the traditional electrolytes, organosilicon is more eco-friendly, which functions as a performance accelerator, security guard, or property stabilizer, simultaneously bringing in some specific new features. As a consequence, organosilicon-based electrolytes have become one of the most prospective alternatives among a variety of electrolytes, and notable progresses have been made in Li-ion batteries, [71] lithium-sulfur (Li-S) batteries, [72] lithiumoxygen (Li-air) batteries, [73] supercapacitors, [74] fuel cells, [75] solar cells, [76] and so on.…”

mentioning

confidence: 99%

Organosilicon‐Based Functional Electrolytes for High‐Performance Lithium Batteries

Wang

Chen

et al. 2021

Advanced Energy Materials

View full text Add to dashboard Cite

Nowadays excessive consumption of fossil fuels due to population growth and industrial development induced serious energy and environmental crisis. To alleviate the ecological crisis and comply with the ever-increasing energy demand, developingThe electrolyte has been considered as a key factor toward higher energy density for Li-ion and Li-metal batteries. However, conventional electrolytes suffer from uncontrolled interfacial reactions and irreversible decomposition causing performance deterioration and potential safety hazard. Organosilicon compounds have attracted great interest as promising electrolyte components due to facile chemical modifications, low glass transition temperatures (T g ), superior chemical, and thermal stabilities. Considerable investigation efforts have been devoted to developing better overall performance of organosilicon-based electrolytes in the past few years. Herein, the recent research progress of organosilicon-based functional electrolytes for the development of liquid, gel, and solid state electrolytes in Li-ion and Li-metal batteries is summarized. Attention is devoted to various types of organosilicon such as silane, siloxane, polysiloxane, and polyhedral oligomeric silsesquioxanes in terms of molecular design, ionic conductivity, functions shown in batteries, thermal, chemical, electrochemical stability, safety, etc. The feasible strategies are also discussed that may promote the comprehensive electrochemical performances of organosilicon-based electrolytes in different types of electrolytes and batteries. Finally, the challenges facing organosilicon-based electrolytes and proposed their possible solutions are presented alongside promising development directions.

show abstract

“…presented another organosilicon, CN(CH 2 ) 2 Si(CH 3 )(OCH 2 CH 2 OCH 3 ) 2 (BNS), as electrolyte solvent, which increased the thermal decomposition temperature of cycled de‐lithiated NMC cathode from 298 to 329 °C (Figure 5d). [ 67 ] During mechanical abuse, the presence of BNS could significantly inhibit the augmentation of the internal temperature, as observed by a 100 °C drop of the internal temperature when the fully charged graphite||NCM111 cell underwent nail penetration (Figure 5e). This proves that BNS‐based electrolytes can improve the thermal stability and safety of Li‐ion batteries.…”

Section: Non‐flammable Organic Liquid Electrolytesmentioning

confidence: 99%

Non‐Flammable Liquid and Quasi‐Solid Electrolytes toward Highly‐Safe Alkali Metal‐Based Batteries

Jaumaux

Shanmukaraj

et al. 2020

Adv Funct Materials

172

133

View full text Add to dashboard Cite

Rechargeable alkali metal (i.e., lithium, sodium, potassium)‐based batteries are considered as vital energy storage technologies in modern society. However, the traditional liquid electrolytes applied in alkali metal‐based batteries mainly consist of thermally unstable salts and highly flammable organic solvents, which trigger numerous accidents related to fire, explosion, and leakage of toxic chemicals. Therefore, exploring non‐flammable electrolytes is of paramount importance for achieving safe batteries. Although replacing traditional liquid electrolytes with all‐solid‐state electrolytes is the ultimate way to solve the above safety issues, developing non‐flammable liquid electrolytes can more directly fulfill the current needs considering the low ionic conductivities and inferior interfacial properties of existing all‐solid‐state electrolytes. Moreover, the electrolyte leakage concern can be further resolved by gelling non‐flammable liquid electrolytes to obtain quasi‐solid electrolytes. Herein, a comprehensive review of the latest progress in emerging non‐flammable liquid electrolytes, including non‐flammable organic liquid electrolytes, aqueous electrolytes, and deep eutectic solvent‐based electrolytes is provided, and systematically introduce their flame‐retardant mechanisms and electrochemical behaviors in alkali metal‐based batteries. Then, the gelation techniques for preparing quasi‐solid electrolytes are also summarized. Finally, the remaining challenges and future perspectives are presented. It is anticipated that this review will promote a safety improvement of alkali metal‐based batteries.

show abstract

Improve safety of high energy density LiNi1/3Co1/3Mn1/3O2/graphite battery using organosilicon electrolyte

Cited by 18 publications

References 25 publications

Simultaneous Coating and Doping of a Nickel-Rich Cathode by an Oxygen Ion Conductor for Enhanced Stability and Power of Lithium-Ion Batteries

Simultaneous Coating and Doping of a Nickel-Rich Cathode by an Oxygen Ion Conductor for Enhanced Stability and Power of Lithium-Ion Batteries

Organosilicon‐Based Functional Electrolytes for High‐Performance Lithium Batteries

Non‐Flammable Liquid and Quasi‐Solid Electrolytes toward Highly‐Safe Alkali Metal‐Based Batteries

Contact Info

Product

Resources

About