A kind of high heat storage adhesive tape and preparation method thereof

Abstract

The invention discloses a novel high heat storage adhesive tape and a preparation method thereof. The adhesive tape comprises the following raw materials in parts by weight: 100 parts of adhesive, 20-80 parts of microcapsule phase change material, 0.8-1.5 parts of defoaming agent, dispersed 0.8-1.5 parts of agent, 10-15 parts of tackifying resin. It is prepared by stirring and mixing the above-mentioned components uniformly in two steps, and then coating and winding to obtain the high heat storage adhesive tape of the present invention. The high heat storage tape has heat storage, temperature control and bonding functions, retains its original function in the field of lithium batteries, and provides protection for heat storage and temperature control, energy saving and environmental protection, and can be used as a protective layer for other fields , has wide application, powerful function, simple preparation process and high commercial promotion value.

Description

technical field [0001] The invention relates to the field of functional adhesive tapes, in particular to a high heat storage adhesive tape. Background technique [0002] In 1991, Sony successfully commercialized lithium-ion batteries by introducing carbon material negative electrodes. In the past few decades, lithium-ion batteries have developed by leaps and bounds. The 2019 Nobel Prize in Chemistry was awarded to three professors including Goodengough who have made outstanding contributions to the research and development of lithium-ion batteries, which further confirms the irreplaceable status of lithium-ion batteries in human life and learning. Generally, the theoretical operating temperature range of lithium-ion batteries is -20°C to 60°C. However, in actual use, when the operating temperature exceeds 35°C or 40°C, it is prone to explosion due to internal organic electrolyte and other factors. In addition, when the temperature is lower than 0°C, the reaction effect of ...

AI Technical Summary

Problems solved by technology

Generally, the theoretical operating temperature range of lithium-ion batteries is -20°C~60°C. However, in actual use, when the operating temperature exceeds 35°C or 40°C, it is prone to explosion due to internal organic electrolyte and other factors.

In addition, when the temperature is lower than 0°C, the reaction effect of the lithium battery is reduced and the discharge capacity of the battery is weakened.

Therefore, in summer or winter, due to the instability of lithium-ion batteries, the experience of electronic devices is reduced and there are safety risks.

Because lithium electronic packaging materials, lithium battery cells, tabs and terminations all need to use a lot of tape, scientists try to use thermally conductive tape or heat insulating tape to prevent the influence of external temperature, but the above two types of tape only have One-sided heat dissipation or heat insulation effect, the heat generated by the device CPU itself and the external temperature effect still exist, and the actual use problem has not been resolved