Abstract: Embodiments of the present application provide a box of a battery. The box includes: an electrical chamber configured to accommodate a plurality of battery cells, a battery cell including a pressure relief mechanism, and the pressure relief mechanism being configured to be actuated when an internal pressure or temperature of the battery cell reaches a threshold, to relieve the internal pressure; a thermal management component configured to accommodate a fluid to adjust the temperature of the battery cell; and a collection chamber configured to collect emissions discharged from the battery cell when the pressure relief mechanism is actuated, where the electrical chamber and the collection chamber are disposed on both sides of the thermal management component, a wall of the collection chamber is provided with a first pressure relief zone, and the first pressure relief zone is configured to relieve the emissions in the collection chamber.

Abstract: Embodiments of the present application are provided with a box of a battery, a battery, a power consumption device, and a method and device for producing a battery. The box of the battery includes: an electrical chamber; a thermal management component; and a collection chamber, configured to collect emissions from the battery cell provided with the pressure relief mechanism when the pressure relief mechanism is actuated; wherein the thermal management component is configured to isolate the electrical chamber from the collection chamber, a pressure relief region is disposed on the thermal management component, and the emissions collected by the collection chamber is discharged through the pressure relief region.

Abstract: A method of developing a product is provided that includes generating a digital system model (DSM) that describes the product and a manufacturing process for the product, and generating a digital twin (DTw) of an instance of a component of the manufacturing process, the DTw including a digital replica of the instance. The method includes receiving attribute data for attributes of process/process characteristics subject to sources of variation that affect product quality. The digital replica is executed with input of the attribute data, and thereby updating the DTw to replicate the instance of the component of the manufacturing process as performed. A data analysis of the manufacturing process is performed based on the DTw as updated, and the manufacturing process is modified based on the data analysis to reduce variability in one or more product characteristics. The DTws of multiple instances may be used to generate further improvement.

Abstract: A high-performance new silicon composite material for a negative electrode of a lithium ion battery and a preparation method thereof by utilizes a conductive polymer PEDOT and a water solution dispersant PSS as a coating layer of nano-Si powder and a carbon source. The Si/C composite material taking a Si-containing type lithium storage material as a main active substance is prepared by firstly polymerizing PEDOT: PSS on the surface of Si through in-situ polymerization reaction and then performing high-temperature carbonization treatment on a prepared Si/PEDOT: PSS composite under an inert atmosphere. The prepared composite material is doped with a small amount of S element. Nano-Si particles are uniformly embedded in a PEDOT: PSS polymer and a carbon matrix. A high yield is achieved by using cheap raw materials and a simple and environment-friendly process. The prepared Si/C composite material has very low initial irreversible capacity loss (2.8%) and excellent charge-discharge.

Abstract: Binder including (i) a chitosan derivative and (ii) deionized water or 1 vol. % aqueous solution of acetic acid as a dispersant. A method for preparing an electrode of a lithium ion battery by adding the binder to a conductive agent.

Abstract: A high-performance new silicon composite material for a negative electrode of a lithium ion battery and a preparation method thereof by utilizes a conductive polymer PEDOT and a water solution dispersant PSS as a coating layer of nano-Si powder and a carbon source. The Si/C composite material taking a Si-containing type lithium storage material as a main active substance is prepared by firstly polymerizing PEDOT: PSS on the surface of Si through in-situ polymerization reaction and then performing high-temperature carbonization treatment on a prepared Si/PEDOT: PSS composite under an inert atmosphere. The prepared composite material is doped with a small amount of S element. Nano-Si particles are uniformly embedded in a PEDOT: PSS polymer and a carbon matrix. A high yield is achieved by using cheap raw materials and a simple and environment-friendly process. The prepared Si/C composite material has very low initial irreversible capacity loss (2.8%) and excellent charge-discharge.