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Negative pole material for lithium-ion secondary battery, negative pole containing negative pole material, preparation method of negative pole and battery containing negative pole

The invention relates to a negative pole material for a lithium-ion secondary battery, and the negative pole material comprises composite particles in core-shell structures, conductive additives and an amide type high-temperature-resistant binder, wherein each composite particle in the core-shell structure comprises an inner core and an outer shell layer, each inner core contains at least one of elemental silicon, a silicon oxide and a silicon alloy, and each outer shell layer is coated by one or more of inorganic materials, namely C, Cu, Ni, Fe, Cr, Al2O3, TiO2, LiPO3, Li2Si2O5, Li2SiO3, Li4SiO4, Li8SiO6 and SiO2; and the amide type high-temperature-resistant binder is one or more of polyamide, imide and amide-imide. The invention further relates to a negative pole containing the negative pole material and a preparation method thereof. The invention further relates to a battery containing the negative pole. The battery has the advantages of higher charge-discharge capacity, better cycle property and high safety, and is suitable for various mobile electronic devices or devices requiring mobile energy sources for driving.
Owner:INST OF PHYSICS - CHINESE ACAD OF SCI

Tea seed cake biological organic fertilizer and production method thereof

The invention discloses a production method of a tea seed cake biological fertilizer. The production method uses 2 to 5 weight parts of tea seed cake, 3 to 7 weight parts of animal dung and 0.2 to 0.4 weight parts of bacterial agent as raw materials, wherein the tea seed cake is tea seed cake powder; the animal dung is chicken, duck, pig, cow or sheep dung; and the bacterial agent is nitrogen-fixing bacterium and cellulose decomposition bacterium combined bacterial agent or an effective microorganism (EM) bacterial agent. The production method comprises the following production steps: 1) mixing the tea seed cake and the animal powder according to a ratio, inoculating the bacterial agent, performing oxygenated fermentation in a fermentation tank, and performing pile turning and moisture regulating treatment for 1 to 3 times, wherein the fermentation conditions include: the moisture content in the tea seed cake and the animal dung is kept between 50 to 60 percent, aerobic fermentation is carried out first till the temperature of the material reaches 40 to 50 DEG C, then anaerobic fermentation is carried out with the ambient temperature above 25 DEG C till the fermented material gives off mildewy smell instead of odor; and (2) drying and crushing the fermented and decayed material, granulating the crushed material, and screening the grains to obtain the tea seed cake biological fertilizer. The organic fertilizer has the characteristics of overall functions, high efficiency, safety and low cost. The organic fertilizer has the combined functions of increasing fertility of soil and effectively killing pests.
Owner:黄山市徽山食用油业有限公司

Matrix produced by using vinegar residue for greening and production process thereof

The invention discloses a matrix produced by using vinegar residue for greening and a production process thereof, belongs to soil for greening projects and a manufacturing method, and aims at the problems that the vinegar residue matrix in the prior art has insufficient stacked fermentation, and the vinegar residue and the mushroom residue are difficult to process in factories in batch and cannot realize commercial production. The process comprises the following steps: adding bacteria into the vinegar residue serving as a main material and plant ash serving as an auxiliary material and mixing the materials, then performing primary (aerobic) fermentation, adding 6 to 8 percent of vermiculite, 10 to 15 percent of perlite and 15 to 20 percent of mushroom residue into the mixture, and performing secondary post (corrosion) fermentation to obtain granular matrix of which the organic substance content is no less than 50 percent, the soluble ion concentration EC value is 1 to 3mS/cm, the pH is 5.5 to 6.5, the venting gap is 25 percent (V) and the water holding gap is 50 percent (V). Through trial, the matrix has loose and ventilated texture, obviously reduces the soil volume weight around flowers and plants, improves water retention, fertility retention and air permeability of the soil, has the function of improving a soil micro-zone environment around the plants, and develops an important path for avoiding environment pollution and changing waste into valuable for factory batch treatment of the vinegar residue and the mushroom residue and realization of commercial production.
Owner:ZHENJIANG HENGXIN BIOTECH CO LTD +1

Sugarcane fertilizer for preventing and treating soil insects and production method thereof

The invention discloses a sugarcane fertilizer for preventing and treating soil insects and a production method of the sugarcane fertilizer. The sugarcane fertilizer comprises the following ingredients: inorganic fertilizer, organic fertilizer, reagents, plant growth regulating agents and bonding agents, wherein the inorganic fertilizer accounts for 45 to 92 weight percent of the total weight of the sugarcane fertilizer, the organic fertilizer accounts for 7 to 50 weight percent of the total weight of the sugarcane fertilizer, the reagents account for 0.25 to 3.5 weight percent of the total weight of the sugarcane fertilizer, the plant growth regulating agents account for 0.04 to 0.05 weight percent of the total weight of the sugarcane fertilizer, and the bonding agents account for 0.075 to 3.0 weight percent of the total weight of the sugarcane fertilizer. The reagents are combination of phoxim, chlorpyrifos and imidacloprid or dinotefuran according to a weight ratio of (1-2):1:(0.1-4.5), and the plant growth regulating agents are sodium nitrophenolate. Products of the sugarcane fertilizer fully meet the requirement on the nutrition in the sugarcane growth process, simultaneously, the effects of preventing and treating sugarcane insects such as stem borers, sugarcane turtles and grubs and treating insects such as cotton aphids, longicorns and the like can be realized, the yield and the sugar content are improved, and the production cost is also reduced.
Owner:GUANGXI LIYUANBAO SCI & TECH

Preparation method of modified biologically-activated filter fillings

The invention relates to a preparation method of modified biologically-activated filter fillings, comprising the following steps of: (1) cleaning an inorganic carrier with the grain diameter of 3-8 millimetres, sequentially carrying out acid cleaning, alkaline cleaning and drying to obtain dry fillings; (2) adding the dry fillings to a metal salt solution to carry out soaking and ultraphonic, drying and sintering to obtain sintering charges; (3) naturally cooling and drying the sintering charges to obtain dry sintering charges; (4) adding the dry sintering charges to a polymeric hydrogel solution containing trace elements and nutrient salts, carrying out soaking and ultraphonic and reacting in a saturated boric acid solution or a 3% calcium chloride solution so as to obtain crosslinked fillings; and (5) drying and naturally cooling the crosslinked fillings so as to obtain the modified biologically-activated filter fillings. The invention has the advantages of simple process and easy implementation; and in addition, the obtained modified biologically-activated filter fillings can increase the activity and the number of biomembranes, shorten the membrane-forming periods of biological aerated filter fillings and enhance the sewage treatment efficiency and the stability of a biological aerated filter.
Owner:GANSU GOLDEN BRIDGE GRP CO LTD +1

Production method of additive of bait for photosynthetic bacteria aquaculture

ActiveCN101595943ABalanced NutrientsPromote growthBacteriaAnimal feeding stuffRhodobacter sphaeroidesCulture fluid
The invention relates to a production method of an additive of a bait for photosynthetic bacteria aquaculture, adopting the following steps: 1. strain amplification culture: adjusting the pH value of a strain amplification medium from 6.0 to 8.5; placing the medium into a glass bottle and carrying out heat disinfection; inoculating a mixed culture of two photosynthetic bacteria including Rhodopeudomonas palustris and Rhodobacter sphaeroides based on 5-40% of the volume of a strain medium; anaerobically culturing the mixed culture for 3-4 days under the conditions that the temperature is 15-35DEG C and the illumination intensity is 1000-3000lux, thus obtaining strain culture fluid; 2. fermentation production: placing a fermentation medium into a fermentation cylinder and carrying out heatdisinfection; inoculating the strain culture fluid based on the inoculation amount, namely 5-40% of the volume of the fermentation production medium; the strain culture fluid is fermented for 6 days to obtain the additive of the bait for photosynthetic bacteria aquaculture under the conditions that the temperature is 28-30 DEG C, the stirring rate is 150-300r/m, the cylinder pressure is kept between 0.02MPa and 0.05MPa and the illumination intensity is 2000-3000lux. Compared with the prior art, the additive has the advantages of stable product quality and diversified functions.
Owner:SHUNDE HONGLONG BIOLOGY SCI & TECH
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