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Water-based flame-retardant graphene ink and preparation method thereof
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A graphene and water-based technology, which is applied in the field of water-based flame-retardant graphene ink and its preparation, can solve the problem that the graphene heating film does not have flame-retardant performance, and achieve the effect of solving the charging and discharging problem and prolonging the service life
Pending Publication Date: 2020-11-03
深圳石墨烯创新中心有限公司
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[0004] The purpose of the embodiments of the present invention is to provide a water-based flame-retardant graphene ink suitable for graphene heating films to solve the problem that the graphene heating films currently used in power batteries do not have flame-retardant properties
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Embodiment 1
[0030] Embodiment 1 provides a water-based flame-retardant graphene ink, and the ink includes the components shown in Table 1-1 in parts by weight.
[0031] Table 1-1 Component ratio of water-based flame-retardant graphene ink
[0032]
[0033] Each component is described as follows:
[0034] The graphene powder is a few-layer graphene (1-3 layers), purchased from Xiamen Kaina Graphene Technology Co., Ltd., the model is KNG-G2-3 graphene powder (hydrophilic), and the mechanical exfoliation method is adopted Production, the electrical and thermal conductivity of graphene is retained to the greatest extent, and the graphene single-layer rate is more than 80%.
[0035] The resin used is water-based polyurethane resin, which can form a film after curing. The model is 1926, purchased from Shenzhen Yoshida Chemical Co., Ltd.
[0036] The solvent used is deionized water, which is mainly used to dissolve polyurethane resin and disperse graphene powder. The laboratory pure water m...
Embodiment 2
[0056] Embodiment 2 provides a water-based flame-retardant graphene ink, and the ink includes the components shown in Table 2-1 in parts by weight.
[0057] Table 2-1 Component ratio of water-based flame-retardant graphene ink
[0058]
[0059] Each component is described as follows:
[0060] The graphene powder is a few-layer graphene (1-3 layers), purchased from Xiamen Kaina Graphene Technology Co., Ltd., the model is KNG-G2-3 graphene powder (hydrophilic), and the mechanical exfoliation method is adopted Production, the electrical and thermal conductivity of graphene is retained to the greatest extent, and the graphene single-layer rate is more than 80%.
[0061] The resin used is water-based polyurethane resin, which can form a film after curing. The model is 1926, purchased from Shenzhen Yoshida Chemical Co., Ltd.
[0062] The solvent used is deionized water, which is mainly used to dissolve polyurethane resin and disperse graphene powder. The laboratory pure water m...
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Abstract
The embodiment of the invention discloses water-based flame-retardant graphene ink. The water-based flame-retardant graphene ink is prepared from the following components in parts by weight: 3-6 partsof graphene, 26-40 parts of resin, 5-20 parts of a flame-retardant material, 30-60 parts of a solvent and 4-10 parts of an auxiliary agent. The water-based flame-retardant graphene ink provided by the embodiment of the invention is used for solving the problem that a graphene heating film used by a current power battery does not have flame-retardant performance. The embodiment of the invention also provides a preparation method of the water-based flame-retardant graphene ink.
Description
technical field [0001] The invention relates to the technical field of graphene inks, in particular to a water-based flame-retardant graphene ink suitable for graphene heating films and a preparation method thereof. Background technique [0002] At present, power batteries, such as new energy vehicles driven by lithium batteries, have two problems in low temperature environments (such as -10°C): on the one hand, at low temperatures, even when fully charged, the battery’s discharge capacity is low. On the other hand, when charging at low temperature, the conductivity of charged ions inside the battery is poor, which makes it difficult to meet the requirements of charging time and charging capacity. [0003] The above problems show that in low temperature environment, it is necessary to heat the power battery before starting and during the use of the car. At present, the heating methods of power batteries mainly use resistance wire heating and heating film heating. The resis...
Claims
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