Battery cell structure of lithium battery

The invention belongs to the technical field of lithium batteries, and particularly relates to a battery cell structure of a lithium battery, which comprises a battery cell body, the battery cell body is sleeved with a protective shell, and a gap is formed between the battery cell body and the protective shell; a group of uniformly distributed elastic pieces are fixedly connected between the battery cell body and the protective shell; the outer sides of the two ends of the protective shell are fixedly connected with pole columns; the pole is connected with the electrode of the battery cell body through a lead; according to the battery module, the protective shell is arranged outside the battery cell body, the protective shell can play a certain protection effect on the battery cell body, and a plurality of uniformly distributed elastic pieces are arranged, so that when the battery module is subjected to external impact or violent shaking, the elastic pieces can provide buffering and damping effects, absorb im