All-solid-state lithium ion battery using garnet-type oxide and Li3BO3 solid electrolytes fabricated by screen-printing

Ohta, Shingo; Komagata, Shogo; Seki, Juntaro; Saeki, Tohru; Morishita, Shinya; Asaoka, Takahiko

doi:10.1016/j.jpowsour.2013.02.073

Cited by 347 publications

(291 citation statements)

References 20 publications

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“…The detailed procedures are as follows: LiCoO2 sol was prepared by mixing LiNO3, Co(NO3)2•6H2O, CH3COOH, 2-propanol, H2O, and polyvinylpyrrolidone (PVP) in a molar ratio of 1.1:1:10:1:0.06. Li3BO3 powder was synthesized by a solid state reaction using Li2CO3 and B2O3 in a molar ratio of 3:1 (Ohta et al, 2013). For the case of LiCoO2/Li3BO3 composite cathode, the mixture of LiCoO2 sol and Li3BO3 in a weight ratio of 7:3 was injected into the holes of the 3D-structured LLZAl pellet.…”

Section: Methodsmentioning

confidence: 99%

“…Since a Li-metal was not involved with Li3BO3, an interfacial resistance between LLZAl and Li-metal had no difference between each sample. Thus, LiCoO2 and the Li3BO3 additive attributed to the decrement of the interfacial resistances, because the Li3BO3 additive can form a better contact in interface (Ohta et al, 2013).…”

Section: Methodsmentioning

confidence: 99%

“…When the mixture of LiCoO2 particles and its precursor sol is applied, the better electrode-electrolyte contact can be formed, resulting in the lower internal resistance of all-solid-state lithium-ion batteries (Kotobuki et al, 2011). A similar approach to improve the electrode-electrolyte contact in all-solid-state lithium-ion batteries has been carried out by Ohta et al (2013). They applied Li3BO3 as a supporting electrolyte to improve the contact between LiCoO2 cathode and LLZ solid electrolyte, in which the mixture of Li3BO3 and LiCoO2 was sintered onto a LLZ pellet with the composition of Li6.75La3(Zr1.75Nb0.25)O12 optimized by them (Ohta et al, 2011).…”

mentioning

confidence: 99%

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Fabrication of All-Solid-State Lithium-Ion Cells Using Three-Dimensionally Structured Solid Electrolyte Li7La3Zr2O12 Pellets

2016

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All-solid-state lithium-ion batteries using Li + -ion conducting ceramic electrolytes have been focused on as attractive future batteries for electric vehicles and renewable energy conversion systems because high safety can be realized due to non-flammability of ceramic electrolytes. In addition, a higher volumetric energy density than that of current lithium-ion batteries is expected since the all-solid-state lithium-ion batteries can be made in bipolar cell configurations. However, the special ideas and techniques based on ceramic processing are required to construct the electrochemical interface for all-solidstate lithium-ion batteries since the battery development has been done so far based on liquid electrolyte system over 100 years. As one of the promising approaches to develop practical all-solid-state batteries, we have been focusing on three-dimensionally (3D) structured cell configurations such as an interdigitated combination of 3D pillars of cathode and anode, which can be realized by using solid electrolyte membranes with hole-array structures. The application of such kinds of 3D structures effectively increases the interface between solid electrode and solid electrolyte per unit volume, lowering the internal resistance of all-solid-state lithium-ion batteries. In this study, Li6.25Al0.25La3Zr2O12 (LLZAl), which is a Al-doped Li7La3Zr2O12 (LLZ) with Li + -ion conductivity of ~10 -4 S ⋅cm −1 at room temperature and high stability against lithium-metal, was used as a solid electrolyte, and its pellets with 700 μm depth holes in 700 μm × 700 μm area were fabricated to construct 3D-structured all-solid-state batteries with LiCoO2/LLZAl/lithium-metal configuration. It is expected that the LiCoO2-LLZAl interface is formed by point-to-point contact even when the LLZAl pellet with 3D hole-array structure is applied. Therefore, Li3BO3, which is a mechanically soft solid electrolyte with a low melting point at around 700°C was also applied as a supporting Li + -ion conductor to improve the LiCoO2-LLZAl interface.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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Fabrication of All-Solid-State Lithium-Ion Cells Using Three-Dimensionally Structured Solid Electrolyte Li7La3Zr2O12 Pellets

2016

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“…Li 3 BO 3 -based solid-state lithium-ion conductors have been recently used for assembling bulk-type all-solid-state lithium-ion battery (hereafter denoted as ASS-LIB), 1)3) which could be applied as high-safety power sources for electric vehicles etc. In bulk-type ASS-LIB, the desirable interfaces between electrolyte particle/electrolyte particle and electrode particle/electrolyte particle should be prepared by a simple powder sintering process, which confer good contacts at the atomic scale for the fast lithium-ion transfer, and also produce little ion-blocking impurities.…”

Section: Introductionmentioning

confidence: 99%

“…Actually, Ohta et al have used the Li 3 BO 3 as an interfacial additive between LiCoO 2 electrode powder and garnet-type sintered electrolyte plate, and obtained reversible chargedischarge capacity of ASS-LIB after heating at 700°C. 1) Li 3 BO 3 Li 2 SO 4 glasses and glass-ceramics were also attractive electrolytes for assembling ASS-LIB due to their high formability of electrode/electrolyte interfaces at room temperature.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of lithium-ion conductivity for Li2.2C0.8B0.2O3 by spark plasma sintering

Okumura

Takeuchi

Kobayashi

2017

J. Ceram. Soc. Japan

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Lithium-ion conductivity of Li 2.2 C 0.8 B 0.2 O 3 pellet is 2.1 © 10 ¹6 S cm ¹1 at 30°C after sintering at 450°C by spark-plasma sintering (SPS) process, which is about three times higher than the conductivity of the pellet sintered at 660°C in conventional furnace. The ionic resistance at grain boundary was especially minimalized by SPS process, which would be related to the grain-growth suppression under densification as confirmed by surficial SEM image. Improvement of chargedischarge capacity could be measured at all-solid-state lithium battery assembled by the SPS process (LiCoO 2 Li 2.2 C 0.8 B 0.2 O 3 composite electrolyte/ Li 2.2 C 0.8 B 0.2 O 3 /dry polymer/Li foil) compared with the same compositions of the battery assembled by conventional furnace sintering, which would be due to the enhancement of the ionic transfer at LiCoO 2 /Li 2.2 C 0.8 B 0.2 O 3 hetero interface as well as

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Solid‐State Batteries with Inorganic Electrolytes

Suzuki

Watanabe

Fujiki

et al. 2020

Encyclopedia of Electrochemistry

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Demand for better energy storage continues to increase because of the new and improved technologies in electric vehicles (EVs), Internet of Things (IoT), and various forms of portable electronics. All‐solid‐state batteries (ASSBs) are deemed a promising power source for some of the applications because of their unique characteristics. In this article, the background and the current state of the field are first discussed. Different types of ASSBs (thin‐film, microbattery, and bulk‐type) are described, and their characteristics and applications are highlighted with particular emphasis on the differences from conventional liquid electrolyte batteries. After a brief summary of the history and application of all‐solid‐state primary batteries, all‐solid‐state secondary batteries of various types are described. Then, an overview of the thin‐film and micro‐size rechargeable batteries is given. A large portion of this article is dedicated to the large‐size secondary batteries due to their high energy density and high capacity, with particular emphasis on sulfide‐type ASSBs. The general procedure and challenges of the fabrication process of large‐format cells are also described for sulfide ASSBs. Finally, practical issues and common misconceptions regarding sulfide ASSBs are discussed, and the outlook of the field is discussed. This work will provide a review of this field from the industrial research and development (R&D) perspective and help bridge the gap between the views of academia and industry.

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All-solid-state lithium ion battery using garnet-type oxide and Li3BO3 solid electrolytes fabricated by screen-printing

Cited by 347 publications

References 20 publications

Fabrication of All-Solid-State Lithium-Ion Cells Using Three-Dimensionally Structured Solid Electrolyte Li7La3Zr2O12 Pellets

Fabrication of All-Solid-State Lithium-Ion Cells Using Three-Dimensionally Structured Solid Electrolyte Li7La3Zr2O12 Pellets

Enhancement of lithium-ion conductivity for Li<sub>2.2</sub>C<sub>0.8</sub>B<sub>0.2</sub>O<sub>3</sub> by spark plasma sintering

Solid‐State Batteries with Inorganic Electrolytes

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