Preparation of amorphous lithium ion conductor thin films by pulsed laser deposition

Kawamura, Junichi; Kuwata, Naoaki; Toribami, Keisuke; Sata, Noriko; Kamishima, O.; Hattori, Takeshi

doi:10.1016/j.ssi.2004.05.034

Cited by 50 publications

(36 citation statements)

References 21 publications

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“…Moreover, thin-film cathode materials are also essential for all solid-state thinfilm batteries (TFBs) [12][13][14][15]. Thin-film rechargeable Li batteries have numerous possible applications such as implantable medical devices, remote sensors, and smart cards [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of solid-state thin-film batteries using LiMnPO4 thin films deposited by pulsed laser deposition

et al. 2015

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Solid-state thin-film batteries using LiMnPO 4 thin films as positive electrodes were fabricated and the electrochemical properties were characterized. The LiMnPO 4 thin films were deposited on Pt coated glass substrates by pulsed laser deposition. In-plane X-ray diffraction revealed that the LiMnPO 4 thin films were well crystallized and may have a texture with a (020) orientation. The deposition conditions were optimized; the substrate temperature was 600°C and the argon pressure was 100 Pa. The electrochemical measurements indicate that the LiMnPO 4 films show charge and discharge peaks at 4.3 V and 4.1 V, respectively. The electrical conductivity of the LiMnPO 4 film was measured by impedance spectroscopy to be 2 × 10 −11 S cm −1 at room temperature. The solid-state thin-film batteries that show excellent cycle stability were fabricated using the LiMnPO 4 thin film. Moreover, the chemical diffusion of the LiMnPO 4 thin film was studied by cyclic voltammetry. The chemical diffusion coefficient of the LiMnPO 4 thin film is estimated to be 3.0 × 10 −17 cm 2 s −1 , which is approximately four orders magnitude smaller than the LiFePO 4 thin films, and the capacity of the thin-film battery was gradually increased for 500 cycles.

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Section: Introductionmentioning

confidence: 99%

Fabrication of solid-state thin-film batteries using LiMnPO4 thin films deposited by pulsed laser deposition

et al. 2015

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“…LVSO (Li 2 O-V 2 O 5 -SiO 2 ) is the amorphous solid state electrolyte which is deposited by PLD 1,2) . The battery fabricated with LVSO (Li 2.2 V 0.54 Si 0.46 O 3.4 ) film shows poor reversibility on CV cycles.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Stable Solid Electrolyte Lithium Silicate for Thin Film Lithium Battery

et al. 2010

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Lithium silicate thin films were successfully deposited by pulsed laser deposition (PLD) technique using an ArF excimer laser. The ionic conductivities, the structures and the stability against CO 2 of the lithium silicate films were examined. The ionic conductivity value at 25°C was 2. IntroductionAll-solid-state thin-film rechargeable lithium batteries are now demanded for micro power devices. The key material for the TFB is amorphous lithium-ion conductor as the electrolyte. In comparison with crystalline electrolyte, amorphous materials have advantages such as good contact with electrode, isotropy of lithium ion conduction and so on. TFBs should be stable for many cycles. Therefore it is important to develop a thin film solid electrolyte which is stable in cycles especially against possible reductions at negative electrode.LVSO (Li 2 O-V 2 O 5 -SiO 2 ) is the amorphous solid state electrolyte which is deposited by PLD 1,2) . The battery fabricated with LVSO (Li 2.2 V 0.54 Si 0.46 O 3.4 ) film shows poor reversibility on CV cycles. This is because of the reduction of vanadium at the interface to the negative electrode.Lithium silicate glasses (Li 2 O-SiO 2 ), which is prepared by removing vanadium from LVSO, are an amorphous solid-state-electrolyte with a wide band gap, which has good charge-discharge reversibility in cycles. Because of its wide gap, lithium silicate thin film is difficult to be deposited by pulsed laser deposition (PLD) technique. By using an ArF excimer laser ( =193 nm), the lithium silicate thin film can be successfully deposited.

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“…Pulsed laser deposition (PLD) is a useful tool to prepare good quality thin films. It has been used for preparation of thin films designed for use in lithium secondary batteries 15–19 . Only two articles have described sulfide‐based solid electrolyte thin films prepared using PLD, amorphous Li 3.25 Ge 0.25 P 0.75 S 4 (thio‐LISICON) 20 and Li 2 S–P 2 S 5 21 thin films.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Highly Lithium‐Ion Conductive 80Li₂S·20P₂S₅ Thin‐Film Electrolytes Using Pulsed Laser Deposition

Sakuda

Hayashi

Hama

et al. 2010

Journal of the American Ceramic Society

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Highly lithium‐ion conductive Li2S–P2S5 thin films were prepared using pulsed laser deposition at room temperature. The ambient Ar gas pressure during deposition strongly affected the thin films' chemical compositions and local structures. The chemical composition and the local structure of the 80Li2S·20P2S5 thin film prepared under 5 Pa showed good agreement with those of the highly lithium‐ion conducting 80Li2S·20P2S5 glass powder prepared by mechanical milling. The ionic conductivity at 25°C and the activation energy for conduction of the as‐deposited 80Li2S·20P2S5 thin films were, 7.9 × 10−5 S/cm and 43 kJ/mol, respectively. The ionic conductivity of the 80Li2S·20P2S5 thin film was increased to 2.8 × 10−4 S/cm through heat treatment. The highly lithium‐ion conducting thin‐films reported in this study are promising electrolytes for developing all‐solid‐state lithium batteries.

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Preparation of amorphous lithium ion conductor thin films by pulsed laser deposition

Cited by 50 publications

References 21 publications

Fabrication of solid-state thin-film batteries using LiMnPO4 thin films deposited by pulsed laser deposition

Fabrication of solid-state thin-film batteries using LiMnPO4 thin films deposited by pulsed laser deposition

Characterization of Stable Solid Electrolyte Lithium Silicate for Thin Film Lithium Battery

Preparation of Highly Lithium‐Ion Conductive 80Li₂S·20P₂S₅ Thin‐Film Electrolytes Using Pulsed Laser Deposition

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Preparation of amorphous lithium ion conductor thin films by pulsed laser deposition

Cited by 50 publications

References 21 publications

Fabrication of solid-state thin-film batteries using LiMnPO4 thin films deposited by pulsed laser deposition

Fabrication of solid-state thin-film batteries using LiMnPO4 thin films deposited by pulsed laser deposition

Characterization of Stable Solid Electrolyte Lithium Silicate for Thin Film Lithium Battery

Preparation of Highly Lithium‐Ion Conductive 80Li2S·20P2S5 Thin‐Film Electrolytes Using Pulsed Laser Deposition

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Preparation of Highly Lithium‐Ion Conductive 80Li₂S·20P₂S₅ Thin‐Film Electrolytes Using Pulsed Laser Deposition