A kind of sico-carbon nanotube composite film electrode for lithium battery

A carbon nanotube composite and thin-film electrode technology, which is applied in battery electrodes, non-aqueous electrolyte battery electrodes, electrode manufacturing, etc., can solve the problems of SiCO charge and discharge lag, cycle performance not meeting the requirements of commercial applications, etc., and achieve adhesion Good, excellent electrochemical characteristics and mechanical properties, the effect of controllable composition

Active Publication Date: 2019-06-25
WENZHOU UNIV
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  • Abstract
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Problems solved by technology

However, SiCO also has unresolved problems such as charge and discharge hysteresis, making its cycle performance still not meet the requirements of commercial applications.

Method used

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  • A kind of sico-carbon nanotube composite film electrode for lithium battery
  • A kind of sico-carbon nanotube composite film electrode for lithium battery
  • A kind of sico-carbon nanotube composite film electrode for lithium battery

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but not as a basis for limiting the present invention.

[0027] Example. A kind of SiCO-carbon nanotube composite film electrode for lithium battery, constitutes as follows figure 1 As shown, a single crystal silicon substrate 1 is included, and a TiN barrier layer 2, a Cu thin film layer 3, a CuO thin film layer 4, a SiCO thin film layer A5, a Ni catalyst layer 6, a carbon nanotube layer 7 and SiCO thin film layer B8.

[0028] The thickness of the TiN barrier layer 1 is 95-105nm.

[0029] The thickness of the Cu thin film layer 2 is 290-310 nm, and the thickness of the CuO thin film layer 4 is 95-105 nm.

[0030] The thickness of the SiCO thin film layer A5 is 190-210 nm; the thickness of the Ni catalyst layer 6 is 45-55 nm; the thickness of the carbon nanotube layer 7 is 95-105 nm; the SiCO thin film layer B8 The thickness is 190-210 nm.

[0031] T...

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Abstract

The invention discloses a SiCO-carbon nanotube composite film electrode for a lithium battery, which is characterized in that it comprises a single crystal silicon substrate (1), on which a TiN barrier layer (2), Cu Thin film layer (3), CuO thin film layer (4), SiCO thin film layer A (5), Ni catalyst layer (6), carbon nanotube layer (7) and SiCO thin film layer B (8). The invention can not only effectively improve the cycle stability of the electrode, but also greatly reduce the thickness of the single layer film, and can obtain a larger thickness of the thin film system, thereby improving the electrochemical performance of the material during high-rate charge and discharge.

Description

technical field [0001] The invention relates to the field of lithium batteries, in particular to a SiCO-carbon nanotube composite film electrode for lithium batteries. Background technique [0002] Lithium ion has a series of advantages such as high energy, long service life, light weight, small size, etc., which has attracted widespread attention and attention from the international battery industry and the scientific and technological circles. Lithium battery applications mainly include energy storage batteries for portable devices and power batteries for new energy vehicles. The former mainly includes 3C products, namely computers, communications and consumer electronics products. The number of mobile phone users around the world is increasing at a rate of about 15%-25%, and the development of notebook computers that use lithium batteries for 50%-70% of their batteries will increase the demand for lithium-ion batteries year by year. As countries around the world pay mor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/13H01M4/36H01M4/587H01M4/139H01M4/04
CPCH01M4/0426H01M4/0428H01M4/13H01M4/139H01M4/366H01M4/587Y02E60/10
Inventor 廖宁波周峰
Owner WENZHOU UNIV
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