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Products & Services

New ProductLi-ion conducting solid state electrolyte LLTOTM

Applications of LLTOTM
① Solid-state Batteries
② Li-Air Batteries
③ Collection of Li from Seawater

LLTOTM Ceramics

  • Chemical formula:La0.57Li0.29TiO3 (LLTOTM)
  • Li-ion conductivity:More than 5.0×10-4 S/cm
Shape Size
Circular plate t0.2~3.0 mm × φ10~30 mm
Square plate t0.2~3.0 mm × φ10~50 mm
One end closed tube Wall : t1±0.1 mm
Outer : φ18±0.2 mm
Length : 60 mm

LLTO ceramics

Total lithium ion conductivity of LLTO ceramics at 27-60℃

Temperature( ℃ ) Total lithium ion conductivity ( S/cm )
27 6.8×10-4
40 9.8×10-4
50 1.7×10-3
60 2.6×10-3
Lithium ion conductivity

The mechanical properties & Permeability of LLTO ceramics

  Test Item Method Value
Mechanical properties Three-point bending strength JIS R1601 79 MPa
Fracture toughness JIS R1607 2.00 MPa・m1/2
Modulus of elasticity (longitudinal) JIS R1602
Resonance method
169 GPa( 1259 Hz )
Modulus of elasticity (transverse) 68.4 GPa( 3782 Hz )
Permeability Water absorption rate JIS 1509-3 < 0.3%
Apparent porosity < 1.0%

LLTOTM powder

  • Chemical composition:La0.57Li0.29TiO3 (LLTO)
Item Granular:TP-02N Milling:TP-02F
Tap density 1.4g/cm2 1.5g/cm2
Specific surface area 1.0m2/g 2.5m2/g
D50 ~40μm ~1μm

D50 was measured by a laser diffractiv​e / scatteri​ng​ particle size distribution measuring device.

LLTO powder
< Color : White >

SEM Images

  • Granular powder : TP-02N
    Granular powder : TP-02N
  • Milling powder : TP-02F
    Milling powder : TP-02F

X-ray Diffraction Pattern

Presentation & Publication Information

Article

Title A rechargeable lithium-air battery using a lithium ion-conducting lanthanum lithium titanate ceramics as an electrolyte separator
Author Yoshiyuki Inaguma, Mamoru Nakashima
Journal J. Power Sources, 228, 250-255 (2013).

*This articlehas been a thing by the collaborative result with Gakushuin University department of science chemistry department Professor Inaguma.

Title High Lithium-Ion Conducting Solid Electrolyte Lanthanum Lithium Titanate Ceramics for Next Generation Battery
Author Hideki Sakai
Journal CERAMICS JAPAN, Bulletin of the Ceramics Society of Japan, 54[5] 333-336 (2019)

Title Higher Performance of Oxide Solid-Electrolyte LLTO for Next-Generation Lithium- Ion Batteries
Author Hideki Sakai
Journal Journal of the Japan Society for Electronic Materials and Technology, 5014-18 (2019)

Presentation at a Conference in Japan

Title A rechargeable Lithium-air battery using a lithium ion-conducting lanthanum lithium titanate ceramics as an electrolyte separator
Author **Y. Inaguma, M. Nakashima
Symposium The 38th Symposium on Solid State Ionics in Japan(December 4, 2012, Kyoto)
Title A rechargeable Lithium-air battery using a lithium ion-conducting perovskite-type lanthanum lithium titanate ceramics as an electrolyte separator
Author **Y. Inaguma, M. Nakashima, **K. Ishii, **D. Mori
Conference The Electrochemical Society of Japan 80th Spring Meeting(March 29-31, 2013, Sendai)
Title A rechargeable Lithium-air battery using a lithium ion-conducting perovskite-type lanthanum lithium titanate ceramics as an electrolyte separator
Author **Y. Inaguma, M. Nakashima, **K. Ishii, **D. Mori
Symposium The 54th Battery Symposium in Japan(October 7, 2013, Osaka)

** This presentation has been a thing by the collaborative result with Gakushuin University department of science chemistry department Professor Inaguma, et. al.

Presentation at an International Conference

Title High Lithium-Ion Conducting Solid Electrolyte Lantanum Lithium Titanate Ceramics for Next Generation Battery
Author N. Nakashima, H.Sakai
Conference The 13th International AABC (**) February 4-8, 2013 (Pasadena CA USA)
Title High Lithium-Ion Conducting and High Mechanical Strength Solid Electrolyte Lantanum Lithium Titanate Ceramics for Rechargeable Lithium-air Battery
Author N. Nakashima, H.Sakai
Conference The 4th European AABC June 24-28, 2013 (Strasbourg, France)

**:Advanced Automotive Battery Conference

Publication in Japanese

Title Development of New Material and Analysis for Lithium-air Battery
Author Hideki Sakai
Book 「次世代蓄電池の【最新】材料技術と性能評価」Technical Information Institute Co., Ltd.(December 2013)
Title High Performance Solid Electrolyte LLTO for Next Generation Rechargeable Lithium Ion Battery
Author Hideki Sakai
Book 「LiBの高容量・高耐久化のための電極ー電解液(質)の界面制御技術と解析・評価」
Technical Information Institute Co., Ltd.(February 2015)
Title Higher Performance of Oxide Solid-Electrolyte LLTO for Next-Generation Lithium-Ion Batteries
Author Hideki Sakai
Book 「全固体電池のイオン伝導性向上技術と材料、製造プロセスの開発」
Technical Information Institute Co., Ltd. 70-74 (2017)
Title Electrochemical Measurement of Ceramics Solid Electrolytes and Evaluation Cases
Author Hideki Sakai
Book 「電気化学・インピーダンス測定のデータ解析手法と事例集」
Technical Information Institute Co., Ltd. 250-254 (2018)
Title Enhancement of Oxide Solid-Electrolyte LLTO
Author Hideki Sakai
Book “Solid State Batteries: Fundamentals and Frontiers”, CMC Research Ltd., 209-214 (2018)
Title Preparation of Oxide Electrolyte Materials
Author Hideki Sakai
Book 「全固体電池開発の現状と産業化へのアプローチ」
JOHOKIKO CO., LTD. 51-58 (2018)
Title Charge-discharge Characteristics for LIB Materials Titanium Oxide Compound
Author Hideki Sakai
Book "Quick Charging Performance & Durability for Automotive Li-Ion Batteries and Market Trend" CMC Research Ltd., 79-92 (2019)

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