Novel 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 is prepared from the following raw materials in parts by weight: 100 parts of an adhesive, 20 to 80 parts of a microcapsule phase change material, 0.8 to 1.5 parts of a defoaming agent, 0.8 to 1.5 parts of a dispersing agent and 10 to 15 parts of a tackifying resin. The preparation method comprises the following steps: uniformly stirring and mixing the components in two steps, and coating and rolling to obtain the high-heat-storage adhesive tape. The high-heat-storage adhesive tape has the effects of heat storage, temperature control and adhesion; the original functions of the high-heat-storage adhesive tape in the field of lithium batteries are maintained; the protection effect of heat storage and temperature control is provided; energy saving and environment protection are realized; the novel high-heat-storage adhesive tape can be used as a protection layer suitable for other fields; application range is wide; functions are powerful; preparation process is simple; commercial popularization value is high.

Description

technical field [0001] The invention relates to the field of functional adhesive tapes, in particular to a novel 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 effe...

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