Abstract: The present disclosure provides a battery module and a battery pack. The battery module includes: multiple cells and an outer frame. The outer frame includes: four support columns, two side plates, and two end plates. The two side plates are arranged opposite to each other. The two end plates are arranged opposite to each other. The four support columns are respectively connected between end portions of the side plates and the end plates. One of a top and a bottom of the support column is provided with a support platform and another is provided with a fitting hole. The support platform of one battery module is fittable in the fitting hole of another battery module.

Abstract: The present disclosure provides a temperature-responsive self-degradable temporary plugging agent and a preparation method thereof as well as its application in plugging the wellbore, which relates to the technical field of oilfield exploitation. The temporary plugging agent provided in the present disclosure includes preparation raw materials of the following mass percentages: monomer 4-6%, crosslinker 0.2-1%, initiator 0.02-0.06%, degradation catalyst 0.05-0.1%, chain transfer agent 0.01-0.05%, and the balance water. The temporary plugging agent of the present disclosure is liquid before gelling, with a low viscosity and a good fluidity, and easy to be pumped. When being pumped into the wellbore, the temporary plugging agent may crosslink at the temperature of the reservoir section, with good gelling properties. At the end of the operations, it can be degraded by itself, without drilling tools, with no need for gel breaking, and with no need for additional degradation promoters.

Abstract: The present disclosure provides a temperature-responsive self-degradable temporary plugging agent and a preparation method thereof as well as its application in plugging the wellbore, which relates to the technical field of oilfield exploitation. The temporary plugging agent provided in the present disclosure includes preparation raw materials of the following mass percentages: monomer 4-6%, crosslinker 0.2-1%, initiator 0.02-0.06%, degradation catalyst 0.05-0.1%, chain transfer agent 0.01-0.05%, and the balance water. The temporary plugging agent of the present disclosure is liquid before gelling, with a low viscosity and a good fluidity, and easy to be pumped. When being pumped into the wellbore, the temporary plugging agent may crosslink at the temperature of the reservoir section, with good gelling properties. At the end of the operations, it can be degraded by itself, without drilling tools, with no need for gel breaking, and with no need for additional degradation promoters.

Abstract: The present invention provides a thin battery, comprising a metal case, a battery core formed by laminating and wrapping an anode, a septum and a cathode, an anode conductive terminal and a cathode conductive terminal, characterized in that: said metal case is made of a quadratic shallow trough having five thin-walls and a top cover welded on the trough; the shallow trough has outlets for the electrodes.

Abstract: The present invention provides a thin battery, comprising a metal case, a battery core formed by laminating and wrapping an anode, a septum and a cathode, an anode conductive terminal and a cathode conductive terminal, characterized in that: said metal case is made of a quadratic shallow trough having five thin-walls and a top cover welded on the trough; the shallow trough has outlets for the electrodes.