Application and development trend of aluminum-plastic film in consumer batteries

1、 Market penetration and technological breakthroughs

Soft pack batteries account for over 90% of small digital products such as smartphones and laptops, and aluminum-plastic film has become the preferred packaging solution due to its lightweight (30% lighter than steel shells), high energy density (5-15% higher), and flexible shape design.

Guangdong Btree New Energy Material Co., Ltd, through independent research and development, has a production capacity of 150 million square meters for aluminum-plastic films, and its product performance is comparable to high-end products from Japan and South Korea.

2、 Technical characteristics and process adaptation

Structural advantages: The aluminum-plastic film adopts a three-layer composite structure of "nylon layer aluminum foil polypropylene", which combines barrier properties (oxygen barrier rate<0.1cc/m ² · day), electrolyte corrosion resistance, and cold stamping forming ability, and is suitable for the demand of lightweight consumer batteries.

Process innovation: The dry process solves the problem of pit whitening through adhesive optimization, while the hot process achieves higher heat sealing strength (up to 3N/15mm), meeting the high consistency requirements of consumer electronic batteries.

3、 New opportunities brought by solid-state batteries

Semi solid/solid state battery adaptation: The soft pack lamination process has high compatibility with solid state batteries, and the demand for aluminum-plastic film is expected to increase with the industrialization of solid state batteries. The global market size is expected to reach 1.41 billion square meters by 2025.

BYD blade battery dual packaging: using "aluminum-plastic film+aluminum shell" dual packaging to promote the synergistic application of aluminum-plastic film in the fields of power and consumer batteries.

4、 Industry Chain Dynamics

Upstream material upgrade: Breakthroughs in the localization of raw materials such as high-purity aluminum foil (99.9%) and corrosion-resistant CPP film support the cost reduction of aluminum-plastic film.

Downstream demand surges: By 2024, the domestic demand for aluminum-plastic film will reach 680 million square meters, with an average annual compound growth rate of 42.34%, and consumer electronics will contribute over 50% of the market share.

The current technological iteration and localization process of aluminum-plastic film in the field of consumer batteries is significant, and in the future, it will benefit from the upgrading of solid-state battery technology to further expand its application scenarios.