Battery structure and battery module

The invention relates to the technical field of lithium ion batteries, in particular to a battery structure and a battery module, the battery module comprises the battery structure, the battery structure comprises a roll core, the roll core comprises a roll core main body, a positive tab and a negative tab, and the roll core main body comprises a positive plate, a negative plate and an isolating membrane; the isolating membrane is positioned between the positive plate and the negative plate and integrally wound to form a roll core main body, the positive tab is led out from the positive plate, the negative tab is led out from the negative plate, the positive tab and the negative tab are positioned at the same end of the roll core main body and are oppositely arranged in a first direction of the roll core main body, and the positive tab and the negative tab respectively extend in a second direction of the roll core main body; wherein the first direction is the thickness direction of the roll core main body, an