Abstract: Embodiments of the present application provide a case of a battery, a battery, a power consumption device, and a method and device for preparing a battery. The case includes: an electrical chamber configured to accommodate a plurality of battery cells and a bus component, where at least one battery cell of the plurality of battery cells includes a pressure relief mechanism; a thermal management component configured to accommodate a fluid to adjust temperatures of the plurality of battery cells; and a collection chamber configured to collect, when the pressure relief mechanism is actuated, emissions from the battery cell provided with the pressure relief mechanism; where the thermal management component is configured to isolate the electrical chamber from the collection chamber. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.

Abstract: Embodiments of the present application provide a case for a battery, a battery, a power consumption device, and a method and device for producing a battery. The case includes: a thermal management component configured to adjust temperature of a battery cell accommodated in the case; a first wall provided with a through hole, the through hole being configured to communicate a gas inside and outside the case; and a heat conducting component attached to the thermal management component and the first wall, the heat conducting component being configured to conduct heat of the thermal management component to the first wall, so that the first wall condenses a gas flowing from the outside of the case to the inside of the case through the through hole. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.

Abstract: The present invention discloses a method for intermittently producing 4,4?-diaminodicyclohexyl methane (H12MDA) with a low amount of the trans-trans isomer thereof, which comprises: controlling the reaction process by stopping the reaction when, except for a solvent, the reaction solution comprises MDA of 0-5 wt % and H6MDA of 1-20 wt %; and b) separating the reaction solution obtained from step a) by conventional means to obtain H12MDA product with desired purity, and allowing the un-reacted material and intermediate product to be recycled to the reactor after being accumulated. The method of the present invention decreases the amount of the trans-trans isomer in H12MDA, increases the yield of the reaction, and reduces the production cost. The present invention also provides a post treatment process of the reaction mixture.

Abstract: The present invention discloses a method for intermittently producing 4,4?-diaminodicyclohexyl methane (H12MDA) with a low amount of the trans-trans isomer thereof, which comprises: controlling the reaction process by stopping the reaction when, except for a solvent, the reaction solution comprises MDA of 0-5 wt % and H6MDA of 1-20 wt %; and b) separating the reaction solution obtained from step a) by conventional means to obtain H12MDA product with desired purity, and allowing the un-reacted material and intermediate product to be recycled to the reactor after being accumulated. The method of the present invention decreases the amount of the trans-trans isomer in H12MDA, increases the yield of the reaction, and reduces the production cost. The present invention also provides a post treatment process of the reaction mixture.