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Lithium carbon dioxide battery capable of working at low temperature and preparation method thereof

A carbon dioxide, low temperature technology, applied in the field of low temperature lithium carbon dioxide battery and its preparation, can solve the problem that there is no lithium carbon dioxide battery research work and the like

Active Publication Date: 2020-07-24
FUDAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At this stage, there is no relevant research work on lithium-carbon dioxide batteries that can work at low temperatures

Method used

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  • Lithium carbon dioxide battery capable of working at low temperature and preparation method thereof
  • Lithium carbon dioxide battery capable of working at low temperature and preparation method thereof
  • Lithium carbon dioxide battery capable of working at low temperature and preparation method thereof

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Embodiment Construction

[0023] The present invention is further described below in conjunction with specific implementation cases, but the specific details of the implementation cases are only to illustrate the present invention, and do not represent all technical solutions under the concept of the present invention, so it should not be interpreted as limiting the general technical solutions of the present invention, some In the opinion of a skilled person, non-substantial additions and changes that do not deviate from the present invention, such as simple replacement or replacement with technical features having the same or similar effects, all belong to the protection scope of the present invention.

[0024] (1) Preparation of low temperature resistant electrolyte. Dissolve 2.87g of lithium bistrifluoromethanesulfonylimide in 10mL of 1,3-dioxolane, and add an appropriate amount of 3A molecular sieves to fully dry the electrolyte. The prepared electrolyte has good low temperature resistance, such as...

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Abstract

The invention belongs to the technical field of new energy, and particularly relates to a lithium carbon dioxide battery capable of working at low temperature and a preparation method thereof. According to the lithium carbon dioxide battery, metal lithium is used as a negative electrode; an organic ether solvent dissolved with lithium salt is taken as a low-temperature-resistant electrolyte; a low-temperature-resistant porous membrane is used as a diaphragm; a porous electrode loaded with a catalyst is taken as a catalytic positive electrode; a macromolecule selective permeable membrane is used as a positive electrode protective layer; and the working temperature is less than or equal to 0 DEG C. The battery can be circularly charged and discharged for more than 150 circles (1500h) under the conditions that the temperature is -60 DEG C, the current density is 100mA. G <-1 > and the cut-off capacity is 500mAh. G <-1>. The battery has a wide application prospect in the field of low-temperature energy storage devices.

Description

technical field [0001] The invention belongs to the technical field of new energy, and in particular relates to a lithium carbon dioxide battery capable of working at low temperature and a preparation method thereof. Background technique [0002] Due to the dual functions of carbon dioxide fixation and energy storage, aprotic lithium carbon dioxide batteries have attracted more and more research interest in recent years, and provide great application prospects for simultaneously addressing the two important issues of global warming and energy crisis. Strategies with economic value. In addition, the use of carbon dioxide as the positive electrode material makes this energy system also play a unique advantage in space exploration. For example, it has great application prospects in Mars, where the atmospheric carbon dioxide concentration is as high as 96%. Therefore, in recent years, people have devoted themselves to the development of battery materials and structures such as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M12/08H01M4/134H01M4/86H01M4/88H01M10/0569
CPCH01M12/08H01M4/134H01M10/0569H01M4/8605H01M4/8825H01M2300/0028Y02E60/10
Inventor 彭慧胜李嘉欣王列王兵杰
Owner FUDAN UNIV
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