A new energy battery packaging box material and a preparation method thereof

By combining polyurethane structural adhesive with biomass fiber and wood shavings in a synergistic ratio and molding process, new energy battery packaging box materials were prepared. This solved the problems of insufficient environmental protection and protective performance of existing materials, and achieved improvements in lightweighting, flame retardancy and cushioning, thus meeting the needs of green development in the new energy industry.

CN122188381APending Publication Date: 2026-06-12FU JIAN XIAN CHEN ZHI XIANG KE JI GU FEN YOU XIAN GONG SI
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
FU JIAN XIAN CHEN ZHI XIANG KE JI GU FEN YOU XIAN GONG SI
Filing Date
2026-03-18
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing new energy battery packaging materials are difficult to improve in a coordinated manner in terms of environmental friendliness, lightweighting and high strength, and traditional materials have problems such as white pollution, high transportation costs and insufficient protective performance.

Method used

By employing a synergistic ratio of polyurethane structural adhesive, biomass fiber, and wood shavings, combined with silane coupling agent modification treatment and the addition of environmentally friendly halogen-free flame retardant additives, new energy battery packaging box materials are prepared through molding process, achieving a synergistic improvement in the material's environmental friendliness, lightweight, high strength, flame retardancy, cushioning, and heat insulation.

Benefits of technology

The material has a biodegradability of β‰₯60% in natural environments, is lightweight to reduce transportation costs, has excellent mechanical properties, flame retardancy reaching UL94 V-0 level, good cushioning performance, significant heat insulation effect, is compatible with different battery box models, has high production efficiency, and meets the needs of green development.

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Abstract

The application discloses a new energy battery packaging box material and a preparation method thereof, and belongs to the technical field of new energy packaging materials and preparation. The new energy battery packaging box material comprises the following components in parts by weight: polyurethane structural adhesive 30-50 parts, biomass fiber / shavings, i.e., a compound combination of biomass fiber and shavings 40-60 parts, flame-retardant additive 5-10 parts, reinforcing agent 2-5 parts, release agent 0.5-2 parts and anti-aging agent 0.3-1 part; wherein, in the biomass fiber / shavings, the mass ratio of the biomass fiber to the shavings is 1:1-3:1, and the biomass fiber and the shavings are used after modification treatment by means of a silane coupling agent. With the polyurethane structural adhesive as a bonding forming matrix, the biomass fiber, the shavings and the silane coupling agent as composite reinforcing modification components, the packaging box material can realize the synergistic improvement of environmental protection, light weight, high strength, flame retardancy, cushioning and heat insulation, and the technical problems of poor environmental protection, difficult synergy of light weight and high strength and the like of the existing new energy packaging materials are solved.
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