Publikace detail

Cathode material for lithium ion accumulators prepared by screen printing for Smart Textile applications

Rok: 2016

Druh publikace: článek v odborném periodiku

Název zdroje: Journal of Power Sources

Název nakladatele: Elsevier Science BV

Místo vydání: Amsterdam

Strana od-do: 192-201

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
cze	Katodová elektroda připravená sítotiskem pro chytré textilie	Článek je zaměřen na výzkum katodové vrstvy pro lithiové akumulátory. Katodová elektroda byla zhotovena tiskovou technikou sítotisk pro oblast flexibilních akumulátorů, které lze s výhodou využít v oblasti chytrých textilii.	sítotisk; lithiové baterie; pedot:pss; tištěná elektronika; chytré textilie
eng	Cathode material for lithium ion accumulators prepared by screen printing for Smart Textile applications	The presented study is focused on the development of LiFePO4 based cathode for thin and flexible screen printed secondary lithium based accumulators. An ink formulation was developed for the screen printing technique, which enabled mass production of accumulator's cathode for Smart Label and Smart Textile applications. The screen printed cathode was compared with an electrode prepared by the bar coating technique using an ink formulation based on the standard approach of ink composition. Obtained LiFePO4 cathode layers were characterized by scanning electron microscopy (SEM), energy-dispersive Xray spectroscopy (EDS) and galvanostatic charge/discharge measurements at different loads. The discharge capacity, capacity retention and stability at a high C rate of the LiFePO4 cathode were improved when Super P and PVDF were replaced by conductive polymers PEDOT:PSS. The achieved capacity during cycling at various C rates was approximately the same at the beginning and at the end, and it was about 151 mAh/g for cycling under 1C. The obtained results of this novelty electrode layer exceed the parameters of several electrode layers based on LiFePO4 published in literature in terms of capacity, cycling stability and overcomes them in terms of simplicity/industrial process ability of cathode layer fabrication and electrode material preparation.	Screen printing; Lithium ion accumulator; Lithium iron phosphate; PEDOT:PSS; Conductive polymer; Printed electronics; Smart Textile

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