Endothermic and fire suppressive material and lithium battery module

A lithium battery module, comprising:

• a housing;
• a cover, disposed on the housing, wherein the housing and the cover constitute an accommodating space;
• at least one lithium battery cell, disposed in the accommodating space;
• and
• an endothermic and fire suppressive material, filled in the accommodating space and covering the lithium battery cell, wherein the endothermic and fire suppressive material comprises:
• barbituric acid, barbituric acid derivative, or a combination thereof;
• ammonium dihydrogen phosphate;
• triethyl phosphate;
• and
• a dispersant, comprising an acrylic polymer containing ammonium salt,
• wherein a weight ratio of the barbituric acid, the barbituric acid derivative, or a combination thereof account to the ammonium dihydrogen phosphate is 99:1 to 1:99,
• wherein a weight ratio of the barbituric acid, the barbituric acid derivative, or a combination thereof account to the triethyl phosphate is 99:1 to 1:99, and
• wherein the at least one lithium battery cell includes a solid electrolyte interface (SEI), and the endothermic and fire suppressive material is configured to, during a short-circuit event, a maximum temperature within the lithium battery module is maintained below a minimum temperature of thermal decomposition or thermal degradation of the solid electrolyte interface (SEI) included in the at least one lithium battery cell.