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A kind of preparation method of flexible lithium ion battery and network lithium titanate electrode structure

A lithium ion battery, lithium titanate technology, applied in the field of new generation energy storage, can solve the problems of not achieving long battery life and high rate, practical application of flexible lithium ion batteries and other problems, achieve excellent rate performance, increase Transmission and transmission of electrons, making simple effects

Active Publication Date: 2016-03-23
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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Problems solved by technology

In the existing flexible lithium-ion batteries, the long life and high rate of the battery have not been achieved, which has greatly hindered the practical application of flexible lithium-ion batteries.

Method used

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  • A kind of preparation method of flexible lithium ion battery and network lithium titanate electrode structure
  • A kind of preparation method of flexible lithium ion battery and network lithium titanate electrode structure
  • A kind of preparation method of flexible lithium ion battery and network lithium titanate electrode structure

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0032] figure 1 A flow chart of a method for preparing a flexible lithium-ion battery proposed by the present invention is shown. Such as figure 1 As shown, the method includes:

[0033] Step 101, growing network lithium titanate on the titanium sheet as the negative electrode material;

[0034] Step 102, making coated lithium manganate nanorods as positive electrode materials;

[0035] Step 103, stacking the negative electrode material, the lithium battery separator and the positive electrode material together in a sandwich shape, and placing them in the middle of two layers of polydimethylsiloxane PDMS films for packaging, thus completing the preparation of the flexible lithium ion battery.

[0036] figure 2 It sh...

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Abstract

The invention discloses a preparation method of a flexible lithium ion battery and a network lithium titanate electrode structure. The preparation method of the flexible lithium-ion battery includes: growing a network lithium titanate on a titanium sheet as a negative electrode material; making a coated lithium manganate nanorod as a positive electrode material; The sandwich shape is stacked together and placed in the middle of two layers of polydimethylsiloxane PDMS films for packaging to complete the preparation of flexible lithium-ion batteries. The flexible lithium-ion battery disclosed in the present invention adopts network-structured lithium titanate, which can make full use of the advantages of the one-dimensional structure and the three-dimensional network structure, and increase the contact area between the active material and the electrolyte. The flexible lithium-ion battery disclosed by the invention can maintain high stability in a bent state, and realize dozens of charging and discharging cycles.

Description

technical field [0001] The invention belongs to the field of new generation energy storage, and specifically relates to the synthesis of lithium titanate network nanostructures and the preparation of flexible lithium ion batteries and network lithium titanate electrode structures using lithium titanate as negative electrode material and lithium manganate as positive electrode material method. Background technique [0002] With the development of flexible electronics, flexible electronic devices have become a market hotspot where major companies compete with each other. Samsung and LG have launched curved displays one after another. In August 2013, flexible technology has been selected by foreign media as one of the top ten technological advances in the world in 2013. On October 2 and 8 this year, LG announced that it has successfully mass-produced flexible displays and bendable lithium-ion batteries, and launched the curved smartphone GFlex on October 29, becoming the worl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/058H01M4/1391
CPCH01M4/1391H01M10/058Y02E60/10Y02P70/50
Inventor 沈国震王显福
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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