Lithium batteries basic ingredients of knowledge

First, the electrode composition: 1, cathode comprising: a, cobalt acid lithium: live * cathode material, lithium-ion source, in order to improve laptop battery source. b, conductive agents: improve cathode conductive films *, compensation cathode material live * * electronic conductivity. Cathode films enhance absorption of liquid electrolyte, an increase of reaction interface to reduce polarization. c, PVDF binder: will cobalt acid lithium, conductive agents and aluminum foil or aluminum net bonded together. d, cathode lead: made from aluminum foil or aluminum strip. 2, negative electrode composed of: a, graphite: Negative live * substances, constitutes a negative reaction of the main substances; mainly divided into natural graphite and artificial Graphite two broad categories. b, conductive agents: improve cathode conductive films *, compensation anode material live * * electronic conductivity. Depth and improve the utilization rate of reaction. To prevent the emergence of dendrites. The use of conductive material liquid absorption capacity, improve reaction interface, reducing the polarization. (Available under the graphite particle size distribution with or without choice). c, additives: Reduce non-reversible reaction, improve adhesion, improve slurry viscosity, slurry to prevent precipitation. d, water * Adhesives: The graphite, conductive agents, additives and copper foil or copper mesh bonded together. e, cathode lead: from copper or nickel belt made. Second, the ingredients Objective: Batching process is in reality all kinds of slurry composition in accordance with the standard mixing ratio, modulation into a slurry, in order to facilitate uniform coating to ensure the most consistent * tablets. Ingredients generally includes five processes, namely: pre-processing of raw materials, mixing, wetting, dispersion and flocculation. Three, the principle ingredients: (1), the principle ingredient cathode 1, * physical and chemical raw materials to. (1) Cobalt Lithium: * non-polar substances, irregular shape, particle size D50 is generally 6-8 μm, water content ≤ 0.2%, usually alkali *, PH value is around 10-11. Lithium Manganese: * non-polar substances, irregular shape, particle size D50 is generally 5-7 μm, water content ≤ 0.2%, usually weak base *, PH value is around 8. (2) conductive agent: * non-polar substances, grape-like chain, 3-6% moisture content, oil absorption value of ~ 300, particle size is generally 2-5 μm; mainly ordinary carbon black, super-conducting carbon black,Latitude D600 ,Latitude D610 , Latitude D620 , Latitude D820 , graphite milk and so on, in high-volume applications typically choose superconducting carbon black and graphite milk mixture; usually * Medium. (3) PVDF binder: * non-polar substances, chain-like molecular weight ranging from 300,000 to 3,000,000; water decreased after the molecular weight, viscosity * variation. (4) NMP: Weak extremely * liquid, used for dissolving / swelling PVDF, also used to dilute the slurry. 2, the pretreatment of raw materials (1) Cobalt Lithium: dehydration. The general atmospheric pressure baking with 120 oC for about two hours. (2) conductive agent: dehydration. The general atmospheric pressure baking with 200 oC for about two hours. (3) adhesive: dehydration. 120-140 oC atmospheric pressure tends to be used 2 hours baking, baking temperature depending on the size of molecular weight of the decision. (4) NMP: dehydration. The use of dry molecular sieve dehydration or special Reclaimer facilities, direct use. 3, the blending of raw materials: (1) binder dissolved (in accordance with the standard concentration) and heat treatment. (2) and conductivity of lithium cobalt acid milling agent: so that the initial mixed powder, cobalt acid lithium and conductive bonding agent together, to reunite the role and improve the electrical conductivity *. Pair will not separate the distribution of slurry in the adhesives, the milling time is generally about two hours; in order to avoid mixing with impurities, normally used as agate ball milling meson. 4, dry powder dispersion, wet: (1) Principle: solid powder placed in the air, over time, will be part of the air in solid adsorption of the surface, add the liquid adhesive, the liquid and gas began to compete for solid surface; if the solids and gas adsorption than strong adsorption and liquid, liquid should not wet solids; if the adsorption of solids and liquids than with gases and strong adsorption, the liquid can wet solids, the gas extrusion. When the wetting angle ≤ 90 degrees, solid wet. When the contact angle> 90 degrees, solid is not wet. Cathode materials for all team members can be wet adhesive solution, it is relatively easy to cathode powder dispersion. (2) dispersion method of the impact of decentralization: A, standing law (a long time and poor performance, but does not damage the material of the original structure); B, mixing method; rotation, or rotation plus revolution (time is short, the effect of good, but there may be individual injury Material for their own structure). 1, impeller speed on the impact of decentralization. Impeller broadly include the snake-like, butterfly, spherical, paddle-shaped gear-shaped and so on. General snake, Inspiron 1300 , Inspiron 1501 , Inspiron 1520 , butterfly, propeller-type impeller used against dispersed difficult material or ingredients of the initial phase; spherical gear dispersed the difficulty for the lower state, the effect of good. 2, stirring speed on the speed of the impact of decentralization. Generally speaking the higher the stirring speed, the faster the dispersion, but on the material their own structure and the equipment the greater the damage. 3, concentration on the dispersion velocity. Usually the smaller the slurry concentration, the faster the spread, but is too thin will result in material waste and slurry heavier precipitation. 4, concentration on the impact of bond strength. Greater concentration, flexible system for the greater strength, bonding strength Greater; concentration the lower the smaller the bond strength. 5, vacuum the speed of the impact of decentralization. High vacuum gap in favor of materials and surface gas emissions, reducing the difficulty of liquid adsorption; material in complete weightlessness or reduced gravity dispersed evenly circumstances would significantly reduce the difficulty. 6, temperature of the dispersion velocity. Appropriate temperature, the slurry flows * good, easy to spread. Hot slurry crust easily, too cold slurry flow * will be greatly reduced. 7, diluted. The slurry adjusted to a suitable concentration, to facilitate coating. (B), the principle of negative ingredients (broadly in line with the same principle as cathode ingredients) 1, * physical and chemical raw materials to. (1) graphite: * non-polar substances, the vulnerability of non-polar substances pollution * easy * in non-polar substances dispersed; less water and are not easy dispersion in water. Contaminated graphite, dispersed in water, the easy re-reunion. D50 for the general size of about 20μm. Particle shape many diverse and irregular, mainly spherical, flake, fibrous and so on. (2) water * Adhesives (SBR): small-molecule line * Chain emulsion, easily soluble in water and polar solvents *. (3) The anti-precipitating agent (CMC): high-molecular compound, soluble in water and polar solvents *. (4) isopropanol: Weak extremely * material, add adhesive solution can be reduced very *, graphite and improve the compatibility of adhesive solution *; have a strong anti-foaming effect; easy catalytic adhesive mesh Alternaria , improve bond strength. Ethanol: very * weak material, add adhesive solution can be reduced very *, graphite and improve the compatibility of adhesive solution *; have a strong anti-foaming effect; easy catalytic Adhesives Line * Alternaria, improve bond strength (the role of isopropyl alcohol and ethanol are essentially the same, high-volume production cost factors to be taken into account and then choose what to add). (5) deionized water (or distilled water): diluent, add slightly to change the flow of slurry *. 2, the pretreatment of raw materials: (1) Graphite: A, mixed, so that homogenization of raw materials, improve consistency *. B, 300 ~ 400 ℃ Atmospheric baking, remove the surface oil * substances, and water * improve the compatibility of adhesive ability to repair the surface of graphite round edges and corners (some material in order to maintain the surface of special *, baking is not allowed, otherwise, performance degradation ). (2) water * Adhesives: appropriate dilution, dispersion ability to improve. 3, mixing, wetting and dispersion: (1) graphite with adhesive solution very * different, not easily dispersed. (2) can be used alcohols in aqueous solution will be the initial wetting of graphite, and then mixed with the binder solution. (3) should be appropriate to reduce the concentration of mixing, dispersion * improve. (4) decentralization process in order to reduce a very * very * complex and non-object distance, improve the potential energy or surface energy, so for the endothermic reaction, stirring when the temperature has decreased overall. Permit conditions such as mixing temperature should be appropriately increased so that endothermic easier, at the same time improve mobility *, lower dispersion degree of difficulty. (5) mixing process such as add a vacuum degassing process, excluded gas, ThinkPad T43 , 40Y6797 , 40Y6799 , ASM 92P1138 , the promotion of solid - liquid adsorption, the effect better. (6) the principle of decentralized, distributed approach with cathode ingredients of relevant content, in three, (1), 4 in detail, in this not explained in detail. 4, diluted. The slurry adjusted to a suitable concentration, to facilitate coating. IV ingredients NOTES:

1, to prevent mixing with other impurities;

2, to prevent slurry spatter;

3, the concentration of slurry (solid content) from the high to low adjust gradually to avoid increasing the trouble;

4, in the mixing of the batch process, attention should be paid at the end of scraping edges and scraping to ensure uniform dispersion;

5, slurry should not be a long time on hold in order to avoid precipitation or even * lower;

6, to be baking the material must be sealed after cooling can add in order to avoid changes in component materials * quality;

7, the length of mixing equipment * can, add the volume of the main materials; the use of impeller slurry dispersed to the difficulty of replacement, can not be replaced by the slow speed can be adjusted to fast so as not to damage equipment;

8, before the slurry material to carry out screening to remove large particles caused coating to prevent the belt; Nine of ingredients to enhance the training of personnel to ensure that they master the professional knowledge, so as not to result in serious accidents; 10, the key is to spread the ingredients evenly, master of the Center, are free to adjust in other ways. V. Introduction: With the battery manufacturing process increasingly transparent, lithium-ion battery manufacturers increasingly will be the core ingredients classified as confidential, because from the material selection, to a reasonable deal with too many technical staff includes painstaking efforts, the same material Some manufacturers use them particularly successful, some 100 manufacturers on the trouble; Some manufacturers use the material can be made mid-range high-end batteries ASM 92P1140 , ThinkPad R51 , ThinkPad T40 , while some manufacturers are using the best materials had led to appalling battery.

transport laptop battery

1 used laptop batteries according to its type, with the national standard classification of the collection of specialized transportation containers.

2 storage, shipping containers used batteries should be based on the characteristics of batteries designed, easy breakage, deformation, their materials can effectively prevent the leakage, the proliferation of. Equipped with a container of scrap batteries has to be affixed to the national standards required by the classification marking.

3 batteries in the packaging and transport before the transport process should ensure the integrity of the structure used batteries, used batteries Inspiron 1526 battery , Inspiron 1720 battery should not be broken, crushed, in order to prevent battery leakage pollution harmful ingredients.

4 belong to hazardous waste transboundary movement of waste batteries Latitude CPX battery , Latitude D500 battery should be in compliance with the "control of Transboundary Movements of Hazardous Wastes and Their Disposal, Basel Convention" requirement; bulk of the domestic transfer of used batteries should be in compliance with the "transfer of hazardous waste manifest Management Measures" and other relevant regulations. 5 levels of environmental protection administrative departments shall, in accordance with established national and local hazardous waste management practices on the transfer of bulk flow of scrap batteries Latitude D520 battery , Latitude D600 battery , Latitude D610 battery to carry out effective control in place to prohibit the transfer of waste batteries will be disposed of in the environment, and to prohibit the focus of 3.1 is required collection of waste batteries in the garbage is mixed.

Waste Battery Pollution Prevention and Technology Policy

1.1 In order to guide environmental management and waste laptop battery treatment and disposal, resource recycling technology development, and regulate the disposal of waste battery treatment and resource recycling behavior, prevention of environmental pollution and promote social and economic sustainable development, according to "the People's Republic of solid waste pollution Environmental Control Act "and other relevant laws, regulations, policies and standards, to introduce the technology policy. The technology policy with the socio-economic, technological level of the development of a timely amendment.

1.2 Technology Policy alleged waste batteries include the following: Have lost their value and a variety of abandoned once the battery (including button batteries), rechargeable Inspiron E1405 battery , etc.; Have lost their value has been discarded lead-acid batteries and other batteries Inspiron E1505 battery , dell C1295 battery , etc.; Have lost their value and abandoned all kinds of electric apparatus dedicated battery pack and its monomer battery; Of these batteries in the production, transportation, sales generated by the process of unqualified products, end-of-life products, expired products, etc.; Of these batteries in the production process mixed waste generated mixed waste; Other abandoned chemical power.

1.3 Technology policy applies to the classification of batteries, collection, transportation, utilization, storage and disposal deal with the whole process of pollution prevention and control of technology options and to provide guidance to the appropriate facilities planning, project, site selection, design, construction, operation and management, and guide the development of relevant industries.

1.4 Waste Battery Pollution Control Products should be guided by the Latitude D600 battery life-cycle analysis of the basic principles, and actively promote clean production and the implementation of the whole process of management and pollution control of the principle of the total material.

1.5 Waste Battery focuses on pollution control of waste mercury-containing batteries, spent nickel-cadmium batteries, scrap lead-acid batteries. Gradually reduced and eventually the battery in a production of non-use of mercury, safe, efficient, low-cost collection, recycling or safe disposal of waste nickel cadmium batteries , scrap lead-acid batteries and other environmentally harmful batteries D5318 , 6Y270 , 1691P .

1.6 Waste hg-batteries, spent nickel-cadmium batteries, scrap lead-acid batteries are hazardous waste, it should be in accordance with the relevant hazardous waste management regulations and standards management.

1.7 to encourage ways to waste battery pollution, pollution laws and environmental impact of small development of new Inspiron 6000 battery of scientific research, to determine the appropriate pollution control strategies.

1.8 through the promotion and popularization of knowledge of pollution prevention and control of waste batteries to raise public environmental awareness, and promote public awareness of waste battery management and its potential environmental hazards have a proper understanding of, spent batteries realize scientific, rational and effective management.

1.9 People's Government at all levels should be established to encourage economic policy measures to speed up environmental protection in line with the requirements of the separate collection of waste batteries, storage, resource recycling and treatment and disposal system and facilities to promote pollution prevention and control of waste batteries.

1.10 and technology policy to follow, "hazardous waste pollution prevention technology policy," the general principles.

Market research organization, said the semiconductor industry recovery will be postponed to 20

According to Taiwan media reports, Intel also lowered financial expectations, including Gartner and other city agencies also stressed due to poor visibility, the general look bad economic trends in the semiconductor industry this year, to amend the original expected recovery in the second half of the view that to wait until 2010 before the recovery of laptop battery . These are four of this week (22 days) will be held in law that cast a shadow over the TSMC, Taiwan Semiconductor Manufacturing Company on the 19th fell 0.45 to close at 41 yuan.
Market research organization, president of Semico Research, Jim (Jim Feldhan) recently pointed out: "It will be a terrible year." Semico forecast that the semiconductor industry this year, output fell by approximately 5.9 percent, but some special applications will be in short supply in 2010 will appear "moderate recovery" is expected to grow about 7%.
Gartner is the second cut this year, the semiconductor industry capital spending is expected that this year the size of semiconductor devices will decline 31.7 percent, representing a 16.3 percent before the recession is expected to further extend the approximately doubled, pointed out that by 2010, hp battery the semiconductor market could grow 14.6 percent.
In addition, VLSI Research predicts that semiconductor sales will decline 2.7 percent last year, and then down 10.4 percent decline, the semiconductor device is in the last year after output fell 25.3 percent, continued to decline this year, more than 26.3%; VLSI semiconductor industry is also expected capital expenditure to 2010 will return to temperature.

Luoyang Suntech to build solar cell manufacturing Heights

According to China Electronics News reported that Suntech founder Shi Zhengrong energy industry to create new high-speed expansion of mythology, laptop battery as part of its second solar cell production base Luoyang Suntech Power Co., Ltd., which is no doubt an important chapter. Founded in November 2005 of Luoyang Suntech, production and expansion at the same time, in less than three years, at present its solar cell production capacity is already the first production line 4 times. % 26ldquo; solar cell industry over the past few years rapid development, our company's construction and development also quickly; Luoyang Suntech Power Co., Ltd. is responsible to the "China Electronics News," told reporters. He introduced, Luoyang Suntech company registered in November 2005, when on to start the construction, in August 2006 the first solar cell production line put into production, plant construction, equipment procurement and installation and commissioning were completed within this period of time, dell battery and speed fast. The company's first production lines with capacity of 30 megawatts, but then carried out Luoyang Suntech expansion, solar battery production capacity also increased by 90 MW, total capacity reached 120 MW.
Monocrystalline silicon solar cell production and the two poly-silicon technology, Suntech has a strong R & D team, these two technologies are mature, the company mass-produced solar cells conversion efficiency reached 17% more than in the domestic in leading level, Suntech's new technology research and development headquarters will soon be used in Luoyang. He also said that according to the original planning, Luoyang Suntech solar future new projects will also be the use of polysilicon production, Luoyang existing products inspiron 6000 battery , d5318 , 1691p are silicon technology.
In the past 2012 years, the shortage of polysilicon raw materials was a solar cell manufacturing enterprise the most headache problem. In this regard, the company said, Sheung Tak Tak headquarters taken by the supply of unified planning, and Shi Zhengrong, chairman of President in this regard is one of vision, as early as in 2006, Suntech will supply with the two main silicon signed 10-year supply contract, and around the stable supply of raw materials, the company headquarters in strategic sourcing and strategic mergers and acquisitions have also been carried out. In particular, he mentioned that since the second half of this year, polysilicon and silicon raw material prices have fallen sharply, Inspiron e1405 battery for the manufacture of solar cells to create conditions to further reduce costs.
On the international financial crisis, companies believe that the international financial crisis on the impact of new energy industries can not be avoided. But he believes that economic development is inseparable from the energy, the more the financial crisis, the more the need for economic development, and economic development requires energy. From energy supply, although the current price of oil has decreased, it is always the consumption of resources-based products gd761 , 6y270 , c1295 , was optimistic about the wind, solar, bio-energy and other new energy sources, because of the inexhaustible solar energy should be realistic option. At the same time, silicon material reduction in the prices of solar cells and will bring about a decline in end products, when the cost of solar photovoltaic energy costs with the traditional approach, this market will further enlarge the future. In addition, from the domestic market, the new energy is the lifeblood of the country, the domestic market although not yet up, but that does not mean it will not. He made it clear that we are very optimistic about this market Inspiron e1505 battery , watching for decades.