Flexible lithium ion battery and preparation method thereof

A lithium-ion battery, flexible technology, applied in the manufacture of electrolyte batteries, batteries, secondary batteries, etc., can solve the problems of battery temperature rise, high battery power consumption, low efficiency, etc., to achieve long cycle life, high energy density, Efficient effect

Inactive Publication Date: 2015-04-01
东莞市鸿德电池有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Traditional batteries have the disadvantages of high power consumption, large size, and low efficiency.
At the same time, due to the chemical reaction that occurs during the use of lithium-ion batteries, it is easy to cause the temperature of the battery to rise and spontaneous combustion occurs.

Method used

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  • Flexible lithium ion battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] see figure 1 , the flexible lithium-ion battery provided in this embodiment is composed of an encapsulation casing and an electric core packaged in the casing, the electric core includes a positive electrode 6, a negative electrode 7, and an upper lead-out electrode 8 arranged on the positive electrode 6, and the The lower lead-out electrode 9 on the negative electrode 7 also includes a polymer electrolyte flame-retardant composite layer arranged in the middle of the cell, and the polymer electrolyte flame-retardant composite layer is composed of a polymer electrolyte layer 1 arranged in the middle, and A composite film composed of an upper solid flame retardant layer 2 and a lower solid flame retardant layer 3 respectively arranged on the upper and lower surfaces thereof.

[0033] The positive electrode 6 is a composite film layer, which is made of a coating layer formed by coating one of lithium cobaltate, lithium nickelate, and lithium manganate on a flexible film co...

Embodiment 2

[0049] This embodiment provides a flexible lithium-ion battery and a method for preparing the flexible lithium-ion battery. Its structure and steps are basically the same as those in Example 1, except that:

[0050] A flexible lithium-ion battery is composed of a package casing and a battery core packaged in the casing. The battery core includes a positive electrode, a negative electrode, an upper lead-out electrode arranged on the positive electrode, and a lower lead-out electrode arranged on the negative electrode. It also includes a polymer electrolyte flame-retardant composite layer arranged in the middle of the battery cell. The polymer electrolyte flame-retardant composite layer is composed of a polymer electrolyte layer arranged in the middle and a solid flame-retardant composite layer arranged on the upper and lower surfaces respectively. Composite film composed of agent layer.

[0051] The positive electrode is a composite film layer, which is made of a coating layer ...

Embodiment 3

[0066] This embodiment provides a flexible lithium-ion battery and a method for preparing the flexible lithium-ion battery. Its structure and steps are basically the same as those in Examples 1 and 2, except that:

[0067] A flexible lithium-ion battery is composed of a package casing and a battery core packaged in the casing. The battery core includes a positive electrode, a negative electrode, an upper lead-out electrode arranged on the positive electrode, and a lower lead-out electrode arranged on the negative electrode. It also includes a polymer electrolyte flame-retardant composite layer arranged in the middle of the battery cell. The polymer electrolyte flame-retardant composite layer is composed of a polymer electrolyte layer arranged in the middle and a solid flame-retardant composite layer arranged on the upper and lower surfaces respectively. Composite film composed of agent layer.

[0068] The anode is a composite thin film layer, which is made of a flexible thin f...

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Abstract

The invention discloses a flexible lithium ion battery. The flexible lithium ion battery is composed of a case packaging and an electrical core packaged in the case packaging; the electrical core comprises a cathode and an anode, an upper extraction electrode arranged on the cathode, and a lower extraction electrode arranged on the anode; the electrical core also comprises a polymer electrolyte fire-retardant composite layer arranged at the middle part of the electrical core; the polymer electrolyte fire-retardant composite layer is a composite thin film composed of a polymer electrolyte layer arranged in the middle, and solid fire retardant layers arranged on the upper surface and the lower surface respectively. The invention also discloses a preparation method of the flexible lithium ion battery. The solid fire retardant-containing flexible lithium ion battery is high in efficiency, long in cycle life, and large in energy density, and is capable of satisfying electric energy demands of flexible electronic devices. The solid fire retardant is capable of improving safety performance of the flexible lithium ion battery effectively. The preparation method is unique, is convenient for processing and batch production, and is high in practical value.

Description

technical field [0001] The invention relates to the field of lithium ion battery manufacturing, in particular to a flexible lithium ion battery and a preparation method thereof. Background technique [0002] With the rapid development of electronic information technology in modern society, more and more electronic devices appear in people's daily life. In recent years, flexible electronic technology, as an emerging technology, has attracted widespread attention worldwide, and more and more flexible electronic devices have begun to emerge. Such as flexible electronic displays, organic light-emitting diodes OLED, printed RFID, electronic skin, wearable devices, etc., have broad application prospects in information, energy, medical, national defense and other fields. However, these newly emerging flexible electronic devices need to provide relevant energy to drive them, and thus put forward higher requirements for the energy supply battery. [0003] Due to the shortcomings of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0525H01M10/058
CPCH01M10/0525H01M10/058H01M10/4235H01M2200/00Y02E60/10Y02P70/50
Inventor 盛洪超李尹庆刘瑞
Owner 东莞市鸿德电池有限公司
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