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High-performance chargeable organic symmetrical lithium ion battery and fabrication method thereof

A lithium-ion battery, high-performance technology, applied in the manufacture of electrolyte batteries, battery electrodes, secondary batteries, etc., can solve the problems of less research reports and low output voltage of all-organic lithium-ion batteries, and achieve large specific capacity and working voltage High, simple preparation effect

Active Publication Date: 2013-04-10
NANKAI UNIV
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  • Abstract
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Problems solved by technology

However, there are few research reports on all-organic lithium-ion batteries, and the output voltage is very low, see: H.Y.Chen, M Armand, M.Courty, M.Jiang, C.P.Grey, F.Dolhem, J.-M.Tarascen, and P. Poizot, Lithium salt of tetrahydroxybenzoquinone: towards the development of a sustainable li-ion battery, J. Am. Chem. Soc., 2009, 131:8984

Method used

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  • High-performance chargeable organic symmetrical lithium ion battery and fabrication method thereof
  • High-performance chargeable organic symmetrical lithium ion battery and fabrication method thereof
  • High-performance chargeable organic symmetrical lithium ion battery and fabrication method thereof

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Embodiment

[0032] A high-performance rechargeable organic symmetric lithium-ion battery, which consists of a positive electrode sheet 1, a negative electrode sheet 2, a separator 3 and an electrolyte 4, and the positive and negative electrode sheets 1 and 2 are micron sheet-shaped 2,5-dihydroxy-p-phenylene Tetralithium diformate (Li 4 DHTPA), the separator is a three-layer film composed of polyethylene-polypropylene-polyethylene.

[0033] The preparation method of the high-performance rechargeable organic symmetric lithium-ion battery, the steps are as follows:

[0034] 1) Preparation of tetralithium 2,5-dihydroxyterephthalate:

[0035] Under argon protection, add 4mmol of lithium methoxide into a 250ml round bottom flask containing 1.98g of 2,5-dihydroxyterephthalic acid and 15ml of absolute anhydrous methanol; after stirring for 2 minutes, a large number of pale yellow precipitates are formed, stir After 12 hours, the precipitated solid was collected by centrifugation, washed several...

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Abstract

The invention discloses a high-performance chargeable organic symmetrical lithium ion battery which comprises a positive plate, a negative plate, a diaphragm and an electrolytic solution, and is characterized in that the positive plate and the negative plate are made of nano-sheet-shaped 2,5-dihydroxy terephthalic acid tetra-lithium salt (Li4DHTPA); and the diaphragm is a three-layer diaphragm made of polyethene-polypropylene-polyethene. Compared with a reported full organic lithium ion battery system, the high-performance chargeable organic symmetrical lithium ion battery has the advantages that materials are cheap and easy to obtain; the fabrication (an acid-alkali neutralization reaction) is simple; the specific capacity (212 mAhg<-1>) is large; the working voltage (1.8V) is high; the cycle performance is good (95% of the initial capacity can be kept after circulation of 50 cycles). The high-performance chargeable organic symmetrical lithium ion battery is expected to serve as a green full organic lithium ion battery of a next generation.

Description

technical field [0001] The invention relates to a preparation technology of an organic lithium ion battery, in particular to a high-performance rechargeable symmetrical organic lithium ion battery and a preparation method thereof. Background technique [0002] The biggest challenge for mankind in the 21st century is to ensure the supply of sustainable energy. Due to the intermittency of sustainable energy such as solar energy, wind energy and tidal energy and the urgent need for large-scale energy storage in modern society, people's efforts to find better, cheaper and greener batteries have never stopped. Lithium-ion batteries have been dominating the portable electronic product market due to their high operating voltage, high energy density and long cycle life, and are also entering the power battery market. The high demand for cathode materials for transition metal-based Li-ion batteries is drawing attention to limited resources and environmental pollution on Earth. Ther...

Claims

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Application Information

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IPC IPC(8): H01M10/0525H01M4/60H01M10/058
CPCY02E60/10Y02P70/50
Inventor 陈军王诗文李昊程方益朱智强梁静陶占良李海霞
Owner NANKAI UNIV
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