Abstract: The present disclosure relates to the technical fields of agriculture and environmental microbiology, and provides Agrobacterium for reducing uptake of heavy metals by wheat. The Agrobacterium is strain NJ20, which is deposited in China General Microbiological Culture Collection Center under Accession CGMCC No. 26197. The present disclosure also provides a bacterial agent which is prepared by the aforementioned Agrobacterium. The Agrobacterium and bacterial agent thereof are used for reducing uptake of heavy metals in heavy metal contaminated soil by wheat. The strain NJ20 of the present disclosure can grow well under the stress of lead and cadmium, and remove soluble lead and cadmium in the culture solution by adsorption; meanwhile the strain NJ20 can generate indoleacetic acid, dissolve insoluble tricalcium phosphate and improve phosphorus nutrition in soil. Inoculation of the strain NJ20 into heavy metal contaminated soil can reduce the contents of lead and cadmium in wheat grains and straws.

Abstract: The present invention relates to an organic capacitor battery with high specific energy and high specific power. It is composed of an anode, a cathode, a separator in-between the cathode and anode, and an organic electrolyte. The characteristics of the capacitor battery are that the anode is a mixture of porous carbon materials with a lithium-ion intercalation compound, the cathode is hard carbon, and the electrolyte is an organic solvent electrolyte containing lithium ions. The super capacitor battery prepared according to this invention has high energy density (up to 20-90 W/Kg) and high power density (>4500 W/Kg, and it can be widely used in electric vehicles, power tools, solar energy storage, wind energy storage, portable appliances and other fields.

Abstract: The present invention relates to a preparation method of a long cycle life negative electrode as well as the organic hybrid capacitor battery using this negative electrode. The preparation steps of the negative electrode include: blending all materials including carbon material with a fast lithium intercalation capability, and a binder, and adding in solvent; pressing the blended material to get an electrode plate of a certain thickness; stirring the conductive agent to a paste, and attaching it to a cathode current collector; attaching the electrode plate to the conductive agent coated negative current collector; Drying, grinding, cutting and vacuum drying to form a negative electrode. In the present invention, the process of pressing the electrode plate into shape first and then attaching to the negative current collector is used, which enables the negative electrode to have a high compressed density and cycle life.