Effect of lithium-ion diffusibility on interfacial resistance of LiCoO2 thin film electrode modified with lithium tungsten oxides

Hayashi, Tetsutaro; Miyazaki, Takamichi; Matsuda, Yusuke; Kuwata, Naoaki; Saruwatari, Motoaki; Furuichi, Yuki; Kurihara, Koji; Kuzuo, Ryuichi; Kawamura, Junichi

doi:10.1016/j.jpowsour.2015.11.075

Cited by 33 publications

(17 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is clearly important to understand the transfer resistance at such interfaces. In the case of a LCO–Li 2 WO 4 interface this resistance has been demonstrated to depend on the Li + diffusivity at the interfaces of LCO . The role of non‐Faradaic Li + migration connected to space charge separation has been demonstrated at LCO/LiPON interfaces …”

Section: Discussionmentioning

confidence: 94%

Experimental Studies on Work Functions of Li⁺ Ions and Electrons in the Battery Electrode Material LiCoO₂: A Thermodynamic Cycle Combining Ionic and Electronic Structure

Schuld

Hausbrand

Fingerle

et al. 2018

Advanced Energy Materials

View full text Add to dashboard Cite

The release of Li + from stoichiometric LiCoO 2 (LCO) -a typical battery electrode material -is investigated by means of thermionic emission. Analysis of the data leads to an ionic work function of w Li+ (LCO) = 4.1 eV. Combination of this value with the electronic work function w e− (LCO) = 5.1 eV, also measured in this work by photoelectron spectroscopy, and with information available from the literature allows the set up, for the first time, of a complete thermodynamic cycle for a Li//LiCoO 2 battery. An open circuit cell voltage of 2.4 eV is derived in line with available literature information. The proofof-principle study presented here provides experimental data on the binding energy values, i.e., chemical potentials, of Li + -ions and electrons and thus of Li-atoms in LiCoO 2 as a battery cathode and is expected to open access to a better understanding and thus to a better design of battery materials.

show abstract

Section: Discussionmentioning

confidence: 94%

Experimental Studies on Work Functions of Li⁺ Ions and Electrons in the Battery Electrode Material LiCoO₂: A Thermodynamic Cycle Combining Ionic and Electronic Structure

Schuld

Hausbrand

Fingerle

et al. 2018

Advanced Energy Materials

View full text Add to dashboard Cite

show abstract

“…7d-e, only the amorphous diffraction ring were observed, indicating that the coating had an amorphous structure. The electrode coating with amorphous structure had good electrochemical stability, high coulomb efficiency and good rate performance [11,23], which explained the good cycle stability and low interface impedance of the above sprayed LTO electrode.…”

Section: Electrochemical Performance Of Amorphous and Traditional Ltomentioning

confidence: 92%

Structural evolution of plasma sprayed amorphous Li4Ti5O12 electrode and ceramic/polymer composite electrolyte during electrochemical cycle of quasi-solid-state lithium battery

Liang

Zhang

et al. 2020

Preprint

View full text Add to dashboard Cite

Solid-state batteries are one of the effective way to solve the safety of traditional power and energy storage batteries with flammable liquid electrolyte. This time, a quasi-solid-state lithium battery is assembled by plasma sprayed amorphous Li 4 Ti 5 O 12 (LTO) electrode and ceramic/polymer composite electrolyte with a little liquid electrolyte (10 μl/cm 2 ) to provide the outstanding electrochemical stability and better than normal interface contact. SEM, STEM, TEM and EDS were used to analyze the structure evolution and performance of plasma sprayed amorphous LTO electrode and ceramic/polymer composite electrolyte before and after electrochemical experiments. By comparing the electrochemical performance of the amorphous LTO electrode and the traditional LTO electrode, the electrochemical behavior of different electrodes is studied. The results show that plasma spraying can prepare an amorphous Li 4 Ti 5 O 12 electrode coating of about 8 μm. After 200 electrochemical cycles, the structure of the electrode evolved, and the inside of the electrode fractured and cracks expanded, because of recrystallization at the interface between the rich fluorine compounds and the amorphous LTO electrode. Similarly, the ceramic/polymer composite electrolyte has undergone structural evolution after 200 cycles test. The electrochemical cycle results show that the cycle stability, capacity retention rate, coulomb efficiency, and internal impedance of amorphous LTO electrodes are better than traditional LTO electrode. This innovative and facile quasi-solid-state strategy is aimed to promote the intrinsic safety and stability of working lithium battery, shedding light on the development of next-generation high-performance solid-state lithium batteries.

show abstract

“…LCO films modified by amorphous tungsten oxide (LWO) fabricated by PLD show a high capacity retention of Q r = 80% at a high rate of 20C, against Q r = 0% for bare LCO films cycled at the same C-rate. A slight increase of the superficial diffusion coefficient of Li + ions from 2.2 × 10 −13 and 3.0 × 10 −13 cm 2 ·s −1 was also observed, owing to the surface modification [83][84][85][86]. Note that LWO as well as LNBO are lithium ion conductors, which act as an efficient buffer between the electrolyte and LCO cathode.…”

Section: Licoo 2 (Lco)mentioning

confidence: 99%

Pulsed Laser Deposited Films for Microbatteries

Julien

Mauger

2019

Coatings

View full text Add to dashboard Cite

This review article presents a survey of the literature on pulsed laser deposited thin film materials used in devices for energy storage and conversion, i.e., lithium microbatteries, supercapacitors, and electrochromic displays. Three classes of materials are considered: Positive electrode materials (cathodes), solid electrolytes, and negative electrode materials (anodes). The growth conditions and electrochemical properties are presented for each material and state-of-the-art of lithium microbatteries are also reported.

show abstract

Effect of lithium-ion diffusibility on interfacial resistance of LiCoO2 thin film electrode modified with lithium tungsten oxides

Cited by 33 publications

References 10 publications

Experimental Studies on Work Functions of Li⁺ Ions and Electrons in the Battery Electrode Material LiCoO₂: A Thermodynamic Cycle Combining Ionic and Electronic Structure

Experimental Studies on Work Functions of Li⁺ Ions and Electrons in the Battery Electrode Material LiCoO₂: A Thermodynamic Cycle Combining Ionic and Electronic Structure

Structural evolution of plasma sprayed amorphous Li4Ti5O12 electrode and ceramic/polymer composite electrolyte during electrochemical cycle of quasi-solid-state lithium battery

Pulsed Laser Deposited Films for Microbatteries

Contact Info

Product

Resources

About

Effect of lithium-ion diffusibility on interfacial resistance of LiCoO2 thin film electrode modified with lithium tungsten oxides

Cited by 33 publications

References 10 publications

Experimental Studies on Work Functions of Li+ Ions and Electrons in the Battery Electrode Material LiCoO2: A Thermodynamic Cycle Combining Ionic and Electronic Structure

Experimental Studies on Work Functions of Li+ Ions and Electrons in the Battery Electrode Material LiCoO2: A Thermodynamic Cycle Combining Ionic and Electronic Structure

Structural evolution of plasma sprayed amorphous Li4Ti5O12 electrode and ceramic/polymer composite electrolyte during electrochemical cycle of quasi-solid-state lithium battery

Pulsed Laser Deposited Films for Microbatteries

Contact Info

Product

Resources

About

Experimental Studies on Work Functions of Li⁺ Ions and Electrons in the Battery Electrode Material LiCoO₂: A Thermodynamic Cycle Combining Ionic and Electronic Structure

Experimental Studies on Work Functions of Li⁺ Ions and Electrons in the Battery Electrode Material LiCoO₂: A Thermodynamic Cycle Combining Ionic and Electronic Structure