Essays about: "Solid Electrolyte interface"

Showing result 1 - 5 of 7 essays containing the words Solid Electrolyte interface.

  1. 1. Ethyl 2,2-difluoroacetate as Possible Additive for Hydrogen-Evolution-Suppressing SEI in Aqueous Lithium-Ion Batteries

    University essay from Uppsala universitet/Strukturkemi

    Author : Pontus Törnblom; [2021]
    Keywords : Lithium; Lithium-ion; Aqueous; Battery; LIB; ALIB; WISE; SEI; Solid Electrolyte interphase; Solid Electrolyte interface; Ethyl difluoroacetate; Ethyl 2; 2-Difluoroacetate; Ethyldifluoroacetate; high reduction; water; additive; EDFA;

    Abstract : The performance and lifetime of lithium-ion batteries are strongly influenced by their composition. One category of critical components are electrolyte additives, which are included primarily to stabilize electrode/electrolyte interfaces in the battery cells by forming passivation layers. READ MORE

  3. 2. Fluorine-free electrolytes for Li-ion batteries

    University essay from Uppsala universitet/Strukturkemi

    Author : Filippa Wahlfort; [2021]
    Keywords : Li-ion batteries; fluorine-free;

    Abstract : Lithium-ion batteries are of great importance for today's society. The state-of-the-art batteries that are used today use a fluorinated electrolyte that contains the salt LiPF6 and acts as both a safety hazard and an environmental issue due to its ability to form the toxic gas hydrogen fluoride (HF). READ MORE

  4. 3. Phase field modelling of LLZO/LCO cathode-electrolyte interfaces in solid state batteries

    University essay from Uppsala universitet/Strukturkemi

    Author : Michele Riva; [2018]
    Keywords : LLZO; LCO; phase; field; phase-field; phasefield; solid; state; solid-state; solidstate; battery; batteries; sintering; model; modelling;

    Abstract : This work describes two phase field models for the simulation of the interface evolution between a LiCoO2 cathode (LCO) and a Li7La3Zr2O12 solid electrolyte (LLZO) in a Li-metal/LLZO/LCO battery during high temperature sintering. In these conditions atomic species tend to diffuse into the opposing material, creating an intermediate layer of mixed composition which resists the movement of lithium ions. READ MORE

  5. 4. Sb/C composite anode for sodium-ionbatteries

    University essay from Uppsala universitet/Strukturkemi

    Author : Yonas Tesfamhret; [2017]
    Keywords : Structural chemistry; Future battery; Battery; Sodium-ion battery; Anode; Antimony; Graphite; Alloy systems; Ball mill; Coat; Composite; Symmetrical-cell; Half-cell; Cycling; Capacity; Solid electrolyte interface;

    Abstract : In this thesis, a Sb/C composite electrode for sodium-ion batteries isprepared by a simple high energy ball milling and calenderingmethod. The prepared Sb/C composite electrode was assembled in ahalf-cell and symmetrical cell setups in order to perform avariety of electrochemical measurements. READ MORE

  6. 5. Evaluation of ALD Oxides as the Sensing Layer for Ion Sensors

    University essay from Uppsala universitet/Fasta tillståndets elektronik

    Author : Elis Nycander; [2016]
    Keywords : ;

    Abstract : In this thesis thin films of aluminium(III) oxide (Al2O3), titanium dioxide (TiO2), and tantalum(V) oxide (Ta2O5) were evaluated as the sensing layer for ion sensors. The oxide films were deposited using atomic layer deposition (ALD) and characterized with ellipsometry. READ MORE