Abstract: An electrode plate includes an active material layer, a current collector including an insulating layer and first and second conductive layers sandwiching the insulating layer, and a conductive structure. The conductive structure includes a first conductive member including a first section arranged along a side of the first conductive layer and a second section extending from the first section and beyond the current collector in a direction away from the active material layer, and a second conductive member including a first connecting section connected to the second conductive layer, a bent section connected to the first connecting section and bent towards the first conductive member relative to the first connecting section, and a second connecting section bent backward relative to the bent section to be sandwiched between the first section and the first conductive layer.

Abstract: A secondary battery includes an electrode assembly including current collecting sections, an electrode terminal, and an adapter sheet connecting the current collecting sections to the electrode terminal. The electrode assembly includes active material layer(s), current collector(s) each including an insulating layer and first and second conductive layers sandwiching the insulating layer, and conductive structures each including first and second conductive members. A portion of the first conductive member extending beyond the second conductive member forms a current collecting section. The current collecting sections are laminated with each other, with one of the current collecting sections directly contacting the adapter sheet. Neighboring ones of the current collecting sections directly contact each other, without any second conductive member arranged therebetween.

Abstract: The present application discloses a negative electrode plate including a negative electrode active material layer including a first active material layer; wherein in a first cross section in a thickness direction of the negative electrode plate, the first active material has a size a in a direction parallel to the metal conductive layer, the first active material has a size b in the thickness direction, satisfying 0.8?a/b?20; in a second cross section in the thickness direction of the negative electrode plate, the first active material has a size c in the direction parallel to the metal conductive layer, the first active material has a size d in the thickness direction, satisfying 0.8?c/d?20; and the first cross section is parallel to a first direction, the second cross section is parallel to a second direction, and the first direction intersects the second direction.

Abstract: This application relates to the battery field, and specifically, to a positive electrode plate, an electrochemical apparatus, and an apparatus. The positive electrode plate in this application includes a current collector and an electrode active material layer disposed on at least one surface of the current collector, where the current collector includes a support layer and a conductive layer disposed on at least one surface of the support layer. A single-sided thickness D2 of the conductive layer satisfies 30 nm?D2?3 ?m. A thickness D1 of the support layer satisfies 1 ?m?D1?30 ?m. The support layer is made of a polymer material or a polymer composite material. The electrode active material layer includes electrode active materials, a binder, and a conductive agent.

Abstract: The present invention relates to the field of water treatment/fluoride removal and to materials/devices useful in such processes. Specifically, the invention provides for hybrid materials comprising amyloid fibrils and ZrO2; and to composite materials further comprising a support material. The invention further provides for the treatment of water using such hybrid or composite materials.