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Correct use of lithium battery

Lithium battery is a more and more widely used energy storage conversion device, because its excellent electrochemical performance realizes the market application scenario of small medium large. When we talk about the correct use of lithium battery, we usually refer to the small application, i.e. co

View More+ May.22,2020
What are the factors that influence the price of lithium battery? abstract The price of lithium battery is mainly composed of three parts: cell, protection plate and shell. At the same time, due to the power consumption and current of electrical appliances, the selection of materials (conventional nickel sheet, formed nickel sheet, copper nickel composite sheet, jumper sheet, etc.) for connecting pieces between cells will affect the cost. Different connectors Price composition of lithium battery The price of lithium battery is mainly composed of three parts: cell, protection plate and shell. At the same time, due to the power consumption and current of the electric appliances, the cost of the selection of connecting pieces between the cells (conventional nickel piece, formed nickel piece, copper nickel composite piece, jumper piece, etc.) will be affected. Different connectors (such as aviation plug, from ten yuan to thousands of yuan) are also possible It has a great impact on the cost, as well as different pack processes. Factors influencing the price of lithium battery 1、 Selection of electric core: First, the selection of different materials will affect the price of the whole lithium battery. According to the different cathode materials, lithium manganate (3.6V), lithium cobaltite (3.7V / 3.8V), nickel cobalt lithium manganate (commonly known as ternary, 3.6V), lithium iron phosphate (3.2V), lithium titanate (2.3V / 2.4V) and other materials, the voltage platform, safety factor, cycle use times, energy density ratio, operating temperature of different materials are different. Second, the prices of different brands of electric core will vary greatly. The total price gradient can be divided into: special electric core (including ultra-low temperature, ultra-high temperature, ultra-high magnification, and heteromorphic), Japanese Series (Panasonic, Sanyo, Sony), Korean series (Samsung, LG), domestic series (domestic series is divided into one line (Lishen, bik, BYD, ATL), two lines, and even five lines and six lines), the same as The price difference of different brands of electric core in material system will be very large, and the quality (safety type, consistency, stability) of each brand of electric core through the survival of the fittest in the market is basically proportional to the price. 2、 Demand and design of lithium battery PCM PCM design can be divided into: basic protection, communication, BMS Basic protection: the basic protection includes overcharge, over discharge, over-current and short-circuit protection, and the over temperature protection can be added according to the product demand Communication: the communication protocol can be divided into I2C, RS485, RS232, CANbus, HDQ, SMBus, etc. there is also a simple power display, which can be indicated by LED with a power meter. BMS: BMS is the first letter combination of batterymanagementsystem, which is called battery management system, commonly known as battery nanny or battery housekeeper. It is mainly for intelligent management and maintenance of each battery unit, to prevent over charging and over discharging of battery, to extend the service life of battery, and to monitor the state of battery. Its main functions include: real-time monitoring of battery physical parameters; battery state estimation; online diagnosis and early warning; charge, discharge and precharge control; balance management and thermal management. The secondary system is mostly used in electric vehicle batteries. 3、 Demand and design of lithium battery shell Lithium battery shell design can be divided into: PVC heat seal, plastic, metal PVC heat seal: what kind of enclosure is used for the external part of the battery pack mainly depends on the specific needs of the customer's products. For the packaging form of PVC heat seal, it is generally applicable to the case where the number of parallel cells is small and the overall weight is light (≤ 2kg). However, for batteries with an overall weight of more than or equal to 1kg, it is necessary to add a fixed bracket between the cells and a glass fiber board around the battery, and then use PVC heat seal. Plastic: the plastic shell is used, mainly after different battery groups are finalized, the shell involved may need to be mold opened, and the mold cost is not a small expense. For example, in the early stage of development, the product is not finalized, you can use the hand plate shell proofing (the strength of the hand plate is not as strong as the material strength after mold opening and finalization), and the requirements for the material and technology of the shell (especially with the three proofing requirements) are different, but also Impact costs. Metal: the metal shell is the same as the plastic shell. Before the product is not finalized or the quantity demand is not much. It is recommended to use sheet metal to make samples. This is mainly because the sample preparation and delivery period is short. If the batch is large, it is also recommended to open the mold. For the metal shell with waterproof level requirements, it will also greatly affect the cost, and for the metal shell with special materials (such as titanium alloy, etc.), the cost will be higher. The cost of lithium battery is mainly composed of cell, PCM and structural parts. In addition, pack cost, aging cost and management cost of the enterprise are required. At the same time, the price of lithium battery will vary greatly due to the different requirements of product technical difficulty, purchase amount and defect rate!

What are the factors that influence the price of lithium battery? abstract The price of lithium battery is mainly composed of three parts: cell, protection plate and shell. At the same time, due to the power consumptio

View More+ May.22,2020
Lithium iron phosphate battery, lithium manganate, lithium cobaltite and ternary lithium battery

Lithium iron phosphate battery, lithium manganate, lithium cobaltite and ternary lithium battery are all branches of lithium-ion battery. Its performance is mainly applicable to power applications. At this time, it is called lithium iron phosphate power battery, also known as lithium iron battery. T

View More+ May.22,2020
How many times is the life cycle of ternary lithium battery

With the promotion of social energy conservation and environmental protection, more and more environmental protection products are applied to the market. In the battery industry, ternary lithium battery with many advantages quickly occupied the market, and gradually replaced the traditional lead-aci

View More+ May.22,2020
The top ten lithium battery manufacturers in China

At present, the lithium battery industry is in a high-speed growth period. Driven by the development of new energy vehicles and photovoltaic energy storage market, the power energy storage lithium battery market will lead the lithium battery industry to a new height, gradually break the technical mo

View More+ May.22,2020
Electric car battery is not durable? Maybe there is something wrong with these parts!

It has been nearly 160 years since Prandtl invented the lead-acid battery. With the continuous improvement of the technology, the technology of the lead-acid battery we use now is quite mature. Due to the limitation of the chemical properties of the lead-acid battery itself, the space for improving

View More+ May.22,2020
Properties, synthesis and application of graphene quantum dots

Graphene quantum dots (gqds) is a new kind of carbon fluorescent material with graphene lamellae size less than 100nm and lamellae number less than 10. Generally speaking, graphene quantum dots are a group of carbon fluorescent materials and their derivatives with the same structure and performance,

View More+ May.22,2020
Oil spirals below zero in ‘devastating day’ for global industry

The day started like any other gloomy Monday in the oil market’s worst crisis in a generation. It ended with prices falling below zero, thrusting markets into a parallel universe where traders were willing to pay $40 a barrel just to get somebody to take crude off their hands.The move was so violent and shocking that many traders struggled to explain it. They grasped wildly at possible causes all day long — had some big firm got caught wrong-footed? Or were inexperienced retail investors flummoxed by a market quirk? — but had no tangible evidence of anything to point to.West Texas Intermediate futures have been the benchmark for America’s oil industry for decades, seeing the market through booms, busts, wars and financial crises, but no single event holds a candle to this. By the end of trading, the contract had slumped from $17.85 a barrel to minus $37.63.“Today was a devastating day for the global oil industry,” said Doug King, a hedge fund investor who co-founded the Merchant Commodity Fund. “US storage is full or committed and some unfortunate market participants were carried out.”Prices rebounded Tuesday, but still were trading at just $0.50 a barrel at 8:31 a.m. Singapore time.In one way, the negative plunge was just an extreme glitch as traders prepared for the expiry of the contract for delivery in May. Elsewhere, the market proceeded as normal — Brent futures, the benchmark for Europe in London, ended the day down sharply, but still above $25 a barrel. WTI for June delivery changed hands at $20 a barrel.But the negative prices also revealed a fundamental truth about the oil market in the age of coronavirus: The world’s most important commodity is quickly losing all value as chronic oversupply overwhelms the world’s crude tanks, pipelines and supertankers. Ultimately, traders were left desperate to avoid having to take delivery of actual oil because nobody needs it and there are fewer and fewer places to put it.Global AccordDespite the OPEC+ deal to cut 10 percent of global production, lauded by US President Donald Trump little more than a week ago, the oil market’s crisis is worsening. The rout will send a deflationary wave through the global economy, complicating the task facing central banks trying to keep economies afloat as the pandemic continues to paralyze business and travel worldwide.The price collapse could redraw the global map of power as petrostates like Russia and Saudi Arabia, which enjoyed a resurgence over the last 20 years thanks to an oil windfall, see their influence diminished. Exxon Mobil Corp, Royal Dutch Shell Plc and other oil giants are ripping up business plans, desperate to preserve cash.WTI is the world’s most traded financial oil contract, a benchmark followed from Zurich to New York to Tokyo. But when each month a futures contract nears expiry and traders roll their positions into further-out contracts, the real, physical world of WTI becomes very small — centered on Cushing, an oil town in Oklahoma where a massive hub of pipelines and storage tanks serves as the actual delivery point for barrels.In the past three weeks, crude has been flowing into Cushing at a breakneck speed, averaging 745,000 barrels a day and taking in more oil than a medium-sized European nation like Belgium consumes. At that rate, the tanks there will be full before the end of May, something that has never happened before.ETF FeverThe days before expiry are often volatile as traders make the shift from a paper to a physical market. Until a few days ago, the May contract had been supported by huge financial flows by retail and institutional investors pouring money into oil through exchange-traded funds.The largest crude ETF, known as the US Oil Fund, received billions of dollars in fresh funds in recent weeks, accumulating a fifth of all the outstanding contracts in the May futures contract. But last week, it rolled its position into the June contract, and evaporated from May. Without the fund, the contract was abandoned to the the forces of physical supply and demand.As the market opened early in Asia’s Monday morning, the May contract traded at $17.85. As New York traders were firing up workstations in their makeshift home offices, it was below $15.Then prices really started to slide, making history all the way down. By 8 a.m. New York time, the decline had reached 37 percent, the biggest intraday drop since the futures started trading in 1982. At around 11 a.m., it passed the low of $10.35 set in the oil bust of 1998. About an hour later, it took out $10 a barrel.‘Not a Single Bid’When CME Group Inc., which runs the exchange where WTI futures trade, said prices would be allowed to go negative, the selling accelerated. By 1:50 p.m. the contract was below $1 a barrel. Less than 20 minutes later, prices went below zero for the first time and just kept falling.“No bids. Mental!,” said one trader at a top merchant in a vain attempt to explain the collapse as prices went negative. “No bids; not a single bid,” said another one in London. “Ridiculous,” said a third senior trader in Geneva.Retail traders were likely sitting on long positions coming into the week and were forced to liquidate them, which would be consistent with the sell-off accelerating in the 30 minutes ahead of Monday’s close, Goldman Sachs analysts including Damien Courvalin theorized.The contract settled at minus $37.63, a drop of $55.90. And there’s still another day of trading to come before it finally expires.“The May crude oil contract is going out not with a whimper, but a primal scream,” said Daniel Yergin, a Pulitzer Prize-winning oil historian and vice chairman of the research and information company IHS Markit LtdEven discounting the oddity of the May contract’s plunge into negative prices, the world of physical oil suggests widespread pain.Many refineries and pipeline companies told producers on Monday that they would only take their oil if they were paid. The daily price bulletin from Enterprise Products Partners LP, one of America’s largest pipeline companies, showed negative prices for all of the crude it buys. Another giant, Plains All American Pipeline LP, told producers the same.Bob McNally, a consultant and oil historian, said the energy market was getting “reacquainted with how the price mechanism for oil works” — and why “for most of oil history, the industry and governments strive to stabilize prices through supply control, be it a tolerated cartel, government regulation, or both.”The OPEC+ coalition of oil producing countries has failed to stop the rout. Saudi Arabia, Russia and other producers announced a week ago an historic deal to cut global production by nearly a tenth, or 9.7 million barrels a day, from May. The US, Canada, Brazil and others have said their own production is also falling as companies stop drilling new wells.For Trump, who personally brokered the OPEC+ deal, negative prices mean more trouble in the US oil patch. Pressure is building within the Republican party to use trade barriers to save the shale industry, including placing tariffs on foreign oil.Trump responded to the negative prices at a White House press conference Monday with plans to fill the spare space in the Strategic Petroleum Reserve and by saying he would look into a proposal to stop shipments of Saudi Arabian oil that are currently en route to the US But he shrugged off the larger impact, calling it “largely a financial squeeze” that would be that would be over in the “very short term.”But the market — negative prices and all — isn’t waiting for OPEC to cut production, or for tariffs to slow imports. Rather than being an isolated event, Monday’s unprecedented oil market plunge serves as a warning of more pain to come.“If global storage worsens more quickly,” veteran Citigroup oil analyst Ed Morse said, “Brent could chase WTI down to the bottom.”

View More+ Apr.21,2020
CLPC china lithium add five Mask Producing Lines

View More+ Mar.29,2020
LITHIUM DIVISION ANNOUNCES GLOBAL PRICE INCREASES

Rockwood Holdings Inc. (NYSE: ROC) lithium division is announcing price increases of up to 20 percent for its lithium salts, including lithium carbonate, lithium hydroxide, lithium chloride, and increases on lithium metal battery grade, effective July 1. The company is also implementing and adjusting specific surcharges due to the requirements of its different global markets. The company is taking this action to recover the increased costs for energy, raw materials, solvents and transport."With this increase we will return prices of lithium carbonate and lithium hydroxide to the levels of 2008" said Dr. Steffen Haber, President of Rockwoods Chemetall lithium division. "In addition, higher prices will help to support our efforts to increase our global production capacities," Haber explained.

View More+ Apr.12,2018
LITHIUM RESOURCES

Lithium ResourcesToday, known global reserves and resources of lithium amount to 35m. tonnes (Evans 2010). Some 61% of this volume is found in high altitude continental brine aquifers of Argentina, Bolivia, Chile, and China and Tibet. About 34% occur in lithium mineral deposits mainly in Australia, Canada, USA, and Zimbabwe of which three quarters are crystalline hard rock deposits and a quarter are soft rock deposits. The 5% balance of this tonnage is contained in oilfield and geothermal brines in the western USA.The present global distribution of supply and demand is more restricted and unbalanced. Regions of high demand in Asia, Europe, and North America rely almost completely on imported lithium chemicals and minerals from Australia, South America, and Zimbabwe.The most commercially important brine deposit today, containing 1,600ppm lithium as lithium chloride, is the Salar de Atacama in Chile’s Region Two. It contributes to 50% of the world lithium production mainly in the form of lithium carbonate and is also a major source of potash recovered at an earlier stage in the brine concentration process. The Atacama conditions of high solar evaporation, very low humidity, low concentrations of magnesium and other impurities, and proximity to port are unique.In contrast lithium-containing mineral deposits are, by far, more evenly distributed around the world.Today, lithium minerals are mined exclusively from pegmatite hard rocks. Worldwide, numerous deposits, primarily containing spodumene and petalite, are being intensively explored with several at an advanced stage in Canada, Finland and Australia. Beneficiated lithium minerals are used in the mineral form and, today almost exclusively in China, for chemical conversion to lithium carbonate. Spodumene (8.0% Li2O), is the most common commercially exploited lithium mineral. Almost 50% of the spodumene mined in Australia today is converted to lithium carbonate in China. Less commercialised are petalite (4.9% Li2O), lepidolite (4.1% Li2O), and amblygonite (10.0% Li2O). Advanced exploration is proving historically well known and large resources of hectorite (1.2% Li2O) in northwest Nevada, USA. Recently, the new lithium-boron mineral jadarite (7.3% Li2O) was discovered in sedimentary soft rock in Serbia where exploration of a massive resource is ongoing by mining major, Rio Tinto

View More+ Apr.12,2018

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