Which is lighter, lithium battery or graphene battery? The answer is as follows:
1. Weight of lithium batteries: Lithium batteries are relatively lightweight, with commonly used single cell lithium batteries weighing between 5-12 grams. However, for lithium batteries used in large-scale applications such as electric vehicles, their weight varies depending on their capacity, design, and manufacturing materials, typically ranging from 5 to 20 kilograms. The weight of lithium batteries is mainly determined by the weight of their internal active materials, electrolytes, separators, and outer shells.
2. Weight of Graphene Battery: Graphene batteries theoretically have a very lightweight characteristic, with a weight of approximately 0.77mg/m2, which means the weight of 1 square meter of graphene is about the weight of a coin. However, in practical applications, graphene batteries are not made entirely of graphene, but contain other materials, resulting in a corresponding increase in weight. Taking common graphene batteries on the market as an example, such as the Tianneng A6 graphene battery, each battery weighs 6 kilograms, while the T9 graphene battery weighs 7 kilograms.
3. Comparison: Under the same capacity or usage, theoretically, graphene batteries may be lighter than lithium batteries due to the lightweight characteristics of graphene materials. However, in reality, the actual weight of graphene batteries will be affected by the addition of other materials to form a complete battery system. Among the common graphene batteries on the market, their weight is equivalent to or slightly heavier than lithium batteries, but the specific differences need to be determined based on the specific model and specifications.
In theory, graphene batteries may be lighter than lithium batteries due to the lightweight properties of graphene materials. However, in practical applications, the weight difference between the two is not significant and needs to be determined based on specific models and specifications.