Volume 137, Issue 8 e202420404
Forschungsartikel

High-Rate Lithium-Ion Capacitor Diode Towards Multifrequency Ion/Electron-Coupling Logic Operations

Dr. Hongyun Ma

Corresponding Author

Dr. Hongyun Ma

School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000 P. R. China

School of Materials and Energy, Lanzhou University, Lanzhou, 730000 P. R. China

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Dr. Kai Sun

Dr. Kai Sun

School of Materials and Energy, Lanzhou University, Lanzhou, 730000 P. R. China

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Yunong Cai

Yunong Cai

School of Materials and Energy, Lanzhou University, Lanzhou, 730000 P. R. China

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Fengfeng Li

Fengfeng Li

School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000 P. R. China

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Lingxiao Ma

Lingxiao Ma

School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000 P. R. China

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Yifeng Qi

Yifeng Qi

School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000 P. R. China

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Dr. Hongwei Sheng

Dr. Hongwei Sheng

School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000 P. R. China

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Dr. Liang Wu

Dr. Liang Wu

School of Mathematics and Physics, Lanzhou Jiaotong University, Lanzhou, 730070 P. R. China

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Dr. Kai Wang

Dr. Kai Wang

School of Materials and Energy, Lanzhou University, Lanzhou, 730000 P. R. China

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Prof. Jun Wang

Prof. Jun Wang

School of Materials and Energy, Lanzhou University, Lanzhou, 730000 P. R. China

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Dr. Yujun Fu

Dr. Yujun Fu

School of Materials and Energy, Lanzhou University, Lanzhou, 730000 P. R. China

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Prof. Yang Chai

Prof. Yang Chai

Department of Applied Physics, The Hong Kong Polytechnic University Kowloon, Hong Kong, P. R. China

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Prof. Wei Lan

Corresponding Author

Prof. Wei Lan

School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000 P. R. China

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First published: 08 January 2025

Abstract

Ion/electron-coupling logic operation is recognized as the most promising approach to achieving in-depth brain-inspired computing, but the lack of high-performance ion/electron-coupling devices with high operating frequencies much restricts the fast development of this field. Accordingly, we herein report an orthorhombic niobium pentoxide (T-Nb2O5) based lithium-ion capacitor diode (CAPode) that possesses thoroughly improved performances to achieve multifrequency ion/electron-coupling logic operations. Specifically, benefiting from the unique crystal structure and fast ion-transport topology of T-Nb2O5, the constructed CAPode exhibits a high response frequency of up to 122 Hz, over three orders of magnitude higher than those of the state-of-the-art CAPodes. Meanwhile, the T-Nb2O5 based CAPode delivers a record-high rectification ratio of 108, a high specific capacity of 390 C g−1, a wide voltage window of −1.5–1.5 V, and a superior cycling stability over 2000 cycles. Combining these performance advantages, the T-Nb2O5 based CAPode is demonstrated to be fully competent in typical AND and OR logic gates over a wide frequency range of 1–100 Hz, validating great potential in the burgeoning field of multifrequency ion/electron-coupling logic operations.

Conflict of Interests

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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