Designing Self-Standing Three Dimensional Composite SiCu Thin Films as Anodes for Lithium Ion Battery

Composite electrolytes containing lithium ion conducting polymer matrix and ceramic filler are promising solid-state electrolytes for all solid-state lithium ion batteries due to their wide electrochemical stability window, high lithium ion conductivity and low electrode/electrolyte interfacial resistance. In this study, we report on the polymer infiltration of porous thin films of aluminum-doped cubic garnet fabricated via a combination of nebulized spray pyrolysis and spin coating with subsequent post annealing at 1173 K. This method offers a simple and easy route for the fabrication of a three-dimensional porous garnet network with a thickness in the range of 50 to 100 µm, which could be used as the ceramic backbone providing a continuous pathway for lithium ion transport in composite electrolytes. The porous microstructure of the fabricated thin films is confirmed via scanning electron microscopy. Ionic conductivity of the pristine films is determined via electrochemical impedance spectroscopy. We show that annealing times have a significant impact on the ionic conductivity of the films. The subsequent polymer infiltration of the porous garnet films shows a maximum ionic conductivity of 5.3 × 10−7 S cm−1 at 298 K, which is six orders of magnitude higher than the pristine porous garnet film.

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Single step synthesized three dimensional spindle-like nanoclusters as lithium-ion battery anodes

CrystEngComm ◽

10.1039/c8ce00349a ◽

2018 ◽

Vol 20 (22) ◽

pp. 3043-3048 ◽

Cited By ~ 1

Author(s):

Lingyu Zhang ◽

Zhigang Gao ◽

Haiming Xie ◽

Chungang Wang ◽

Lu Li ◽

...

Keyword(s):

Lithium Ion Batteries ◽

Lithium Ion Battery ◽

Anode Materials ◽

Three Dimensional ◽

Lithium Ion ◽

Single Step ◽

Conventional Heating ◽

Heating Method ◽

3D Architecture ◽

One Step

A facile, green, mild and one-step conventional heating method was developed to synthesize monodisperse Sn-doped Fe2O3 nanoclusters with a novel spindle-like 3D architecture as anode materials for lithium-ion batteries.

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Thermal Management of Air-Cooling Lithium-Ion Battery Pack

Chinese Physics Letters ◽

10.1088/0256-307x/38/11/118201 ◽

2021 ◽

Vol 38 (11) ◽

pp. 118201

Author(s):

Jianglong Du ◽

Haolan Tao ◽

Yuxin Chen ◽

Xiaodong Yuan ◽

Cheng Lian ◽

...

Keyword(s):

Lithium Ion Battery ◽

Thermal Management ◽

Thermal Performance ◽

Three Dimensional ◽

Lithium Ion ◽

Battery Pack ◽

Cooling Effect ◽

Air Cooling ◽

Safety Issues ◽

Battery Packs

Lithium-ion battery packs are made by many batteries, and the difficulty in heat transfer can cause many safety issues. It is important to evaluate thermal performance of a battery pack in designing process. Here, a multiscale method combining a pseudo-two-dimensional model of individual battery and three-dimensional computational fluid dynamics is employed to describe heat generation and transfer in a battery pack. The effect of battery arrangement on the thermal performance of battery packs is investigated. We discuss the air-cooling effect of the pack with four battery arrangements which include one square arrangement, one stagger arrangement and two trapezoid arrangements. In addition, the air-cooling strategy is studied by observing temperature distribution of the battery pack. It is found that the square arrangement is the structure with the best air-cooling effect, and the cooling effect is best when the cold air inlet is at the top of the battery pack. We hope that this work can provide theoretical guidance for thermal management of lithium-ion battery packs.

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