Lithium Battery

Your Professional Lithium Battery Manufacturer in China!

Shimastu Electronic Technology Co., Limited, a premier manufacturer of Sealed Lead Acid batteries&Lithium batteries, was established in 2001 and located in Zhongshan City, Guangdong Province, China.

Why Choose Us

Wide Product Range

Our main products cover AGM VRLA batteries, GEL batteries, OPzV/OPzS batteries, font terminal batteries, 2V long-life batteries, lead carbon batteries, lithium batteries, Car batteries, etc.

Quality Guaranteed

Shimastu strictly works on quality control of all production steps, ensuring all the products a reliable performance and high quality, and the company has been certified with ISO 9001, ISO 14001, UL and CE, etc.

Wide Applications

Shimastu has been exporting to worldwide clients serving in the energy storage and power backup industry such as UPS/EPS, solar power systems, security systems, emergency lighting systems, telecom systems, data centers, etc.

High Quality Service

We specialize in research and development, manufacturing, sales, and marketing of full categories of batteries. We are committed to providing a high level of customer service, and 24/7 customer support, so all your problems can be responded to quickly.

48V Lithium Battery

Our main products cover AGM VRLA batteries, GEL batteries, OPzV/OPzS batteries, font terminal

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48V Lithium Battery

Rack mounted 48V Lithium Battery for For Energy Storage Solar System, UPS, Telecommunication,

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24V LiFePO4 Lithium Battery

Shimastu manufacture our 24V LifePO4 Lithium Battery based on high quality standards, ensuring the

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12V LiFePO4 Replacement Batteries

Here at Shimastu, we offer advanced 12V LiFePO4 Replacement Batteries(LFP batteries) to replace any

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Definition of Lithium Battery

Lithium-ion is the most popular rechargeable battery chemistry used today. Lithium-ion batteries power the devices we use every day, like our mobile phones and electric vehicles. Lithium-ion batteries consist of single or multiple lithium-ion cells, along with a protective circuit board. They are referred to as batteries once the cell, or cells, are installed inside a device with the protective circuit board.

Working Principle of Lithium Battery

A battery is made up of an anode, cathode, separator, electrolyte, and two current collectors (positive and negative). The anode and cathode store the lithium. The electrolyte carries positively charged lithium ions from the anode to the cathode and vice versa through the separator. The movement of the lithium ions creates free electrons in the anode which creates a charge at the positive current collector.

The electrical current then flows from the current collector through a device being powered (cell phone, computer, etc.) to the negative current collector. The separator blocks the flow of electrons inside the battery. While the battery is discharging and providing an electric current, the anode releases lithium ions to the cathode, generating a flow of electrons from one side to the other. When plugging in the device, the opposite happens: Lithium ions are released by the cathode and received by the anode.

Benefits of Lithium Battery You Want to Know

High Energy Density
When it comes to energy density, lithium ion batteries are top performers. This property describes the amount of energy a battery can hold, relative to its size. The more energy a battery can store, the higher its energy density. Compared to traditional lead-acid batteries which can hold between 50 to 100 wh/kg, lithium ion batteries boast an impressive range of between 260 and 270 wh/kg.

Lightweight
On average, lithium batteries weight between 50 and 60% less than traditional batteries. This makes them ideal for compact and handheld devices, including smartphones and e-readers.

Long Lifespans
As well as being rechargeable, lithium ion batteries boast exceptionally long lifespans. High-performance lithium batteries last up to 10 times longer than their lead-acid counterparts. Of course, lithium ion batteries eventually deteriorate. Though with the right recycling practices in place, materials can be salvaged and lithium batteries can find a place in the circular economy.

Good Long-Term Performance
Lithium or not, all batteries degrade over time. However, when it comes to long-term performance lithium batteries rate highly. The best lithium batteries continue to offer 80% of rated capacity after around 200 cycles.

Low Self-Discharge
Self-discharge is one of the biggest issued faced by battery engineers. Unlike other types of rechargeable batteries, lithium ion cells have a low self-discharge rate. Batteries will generally lose around 5% of charge in the first few hours, however this quickly drops to around 1 to 2% per month.

Fast Charge Times
Fast charge times make lithium batteries the technology of choice for consumer products. This includes handheld devices like smartphones and tablets, as well as larger battery-powered products like electric cars.

Classification of Lithium Battery

Lithium Iron Phosphate (LiFePO4 or LFP)
LFP batteries have Lithium Ferrous Phosphate (LiFePO4) as the anode material, and this is one of the most widely adopted battery technologies nowadays. The anode is made of Lithium Iron Phosphate, one of the most stable and non-toxic lithium compounds. It results in greater thermal stability in fully charged conditions. Whereas other lithium-ion battery types tend to exhibit thermal runaway in these conditions.

Lithium Cobalt Oxide (LiCoO2 or LCO) Batteries
A Lithium Cobalt Oxide battery contains a Lithium Cobalt Oxide cathode and a graphite carbon anode. The unique selling point of lithium cobalt oxide batteries is their high energy density, which makes them the best choice for some particular applications with this requirement. LCO batteries have a significantly low specific power. This means there is a limitation to their load capability, making them unsuitable for applications such as electric vehicles.

Lithium Manganese Oxide (LiMn2O4 or LMO) Batteries
In LMO batteries, the cathode is made of Lithium Manganese Oxide (LiMn2O4). This results in a three-dimensional spinel structure, enabling a better movement of lithium ions. This structure also makes it thermally more stable and safer. But it lowers the life span of the battery. Lithium manganese oxide batteries have design flexibility and can be modified by adding other materials to improve their chemical properties. The specific energy of these batteries is low.

Lithium Titanate Batteries (Li2TiO3 or LTO)
LTO batteries are different from the other lithium-ion batteries mentioned previously. These batteries use Lithium Titanate (Li2TiO3) as the anode material instead of a graphite anode. The cathode materials are Li-NMC or Lithium Manganese Oxide.

Applications of Lithium Battery

01/

Portable Power Packs

Rechargeable li-ion batteries provide portable electricity that powers electronics gadgets. Li-ion batteries are lightweight and can be made smaller than other battery types which makes them convenient to carry around.

02/

Solar Energy Storage

Li-ion batteries are also used for storing solar energy in solar panels as they can be charged quickly. They are lighter, more compact and can hold higher amounts of energy compared to lead acid batteries.

03/

Uninterrupted Power Supply (UPS)

Li-ion batteries provide emergency back-up power in case of power loss or fluctuation. Office equipment like computers, as well as IT servers, need to keep running in case of power interruption to prevent data loss. Back-up power is also needed in the medical or health care industry to guarantee consistent power supply to life-saving medical equipment.

04/

Electric Vehicles

The automotive industry poses a demand for li-ion battery packs to provide power source for electric, hybrid or plug-in hybrid electric vehicles. As li-ion battery can store large amounts of energy and can be recharged many times, they offer better charging capacity and longer lifespan.

05/

Personal Mobility

Lithium-ion batteries are used in wheelchairs, bikes, scooters and other mobility aids for individuals with disability or mobility restrictions. Unlike cadmium and lead batteries, lithium-ion batteries contain no chemicals that may cause further harm to a person’s health.

06/

Marine Vehicles

Li-ion batteries continue to emerge as an alternative to gasoline and lead-acid batteries in powering work or tug boats and leisure boats like speed boats and yachts. Li-ion batteries provide quiet and efficient power source and can also be used to provide electricity to appliances inside the boat or yacht while it is on dock.

Components of Lithium Battery

Cathode
A conductive aluminum foil is usually used as a current collector, and then a metal-oxide is containing "lithium" is coated with a solvent, a binder, a conductive agent, and add a little conductive material. The cycle life of lithium-ion batteries is closely related to the material used in the positive electrode. Studies have shown that if lithium iron phosphate is used as the main positive electrode material, the battery cycle life is estimated to reach 30,000 times.

Anode
As the advantages of stable cost and high safety, up to 90% of lithium-ion batteries on the market use graphite as the anode material. In the lithium-ion battery market gradually pursuing the development trend of high capacity, many research teams have invested in the development of silicon-based anode materials based on silicon or silicon oxide in order to improve the energy density of the battery.

Separator
The microporous film made of polypropylene (PP)/polyethylene (PE) and other plastics, placed between the positive and negative plates to block the positive and negative electrodes to avoid battery self-discharge and short-circuit between the two poles problem. The separator is full of dense micropores, in order to make lithium ions can through, allowing the battery to form a complete charge and discharge circuit.

Electrolyte
As a medium for the transfer of lithium ions between the positive and negative electrodes, the common main components of lithium-ion battery electrolytes, including EC, DMC, and PC, etc., as an extremely important role in the performance of lithium-ion batteries. If you want to improve the battery cycle life, safety, and lithium-ion transmission characteristics, you can start to improve the electrolyte formulation and electrolyte additives. Proper lithium-ion battery electrolyte can maximize the performance of lithium-ion batteries.

5 Maintenance Tips for Lithium Battery

Monitor Temperature

Li-ion batteries can be susceptible to heat. It's important to monitor the temperature of the battery and make sure it doesn't exceed 140 degrees Fahrenheit. To avoid overheating, make sure to keep your car in a cool and well-ventilated area.

Avoid Frequent Deep Discharges

A deep discharge is when the battery discharges to a very low level. This can be harmful to the battery, so it's important to avoid frequent deep discharges. You can do this by keeping your car in economy mode to conserve energy, and by avoiding unnecessary idling.

Charge to Optimal Level

Learn about the expenses involved in EV infrastructure by exploring how much a commercial EV charging station costs. Li-ion batteries work best when they’re charged to just under 100%. So instead of charging it to 100%, charge the battery to 90%. This will help keep your battery in good condition, and prolong its lifespan.

Store Carefully

If you're not using your electric vehicle for an extended period, it's important to store the battery correctly. When storing lithium batteries, make sure the temperature is between 40 and 45 degrees Fahrenheit. Also, make sure to store the battery with a low charge, around 40%.

Check and Replace Battery Regularly

It's important to check and replace your lithium battery regularly. The general rule of thumb is to replace it after around five years of use. You should also perform regular maintenance checks (such as checking the charge level and temperature) to make sure the battery is in good condition.

Certifications

Our batteries have been certified with ISO 9001, ISO 14001, UL and CE, etc.

Our Factory

Frequently Asked Questions (FAQ) about Lithium Battery

Q: Are all lithium batteries the same?

A: No, all lithium batteries are not the same. In fact, the difference between two lithium-ion batteries can be that of night and day due to their technological complexity. The characteristics of a lithium-ion battery depend on the particular lithium-based compound used at the electrodes.

Q: How many different types of cells are used for lithium batteries?

A: Based on electrode materials, there are six different types of lithium cells: LFP, NMC, LCO, NCA, LTO, and LMO. Based on the cell shape, there are three types of lithium-ion batteries- cylindrical, pouch, and prismatic, each with distinct battery performance parameters.

Q: Which type of lithium battery is safest?

A: Lithium iron phosphate batteries (LFP batteries) are the safest among current lithium-ion batteries on the market. LFP batteries do not contain toxic substances like cobalt and have excellent thermal and chemical stability characteristics. Lithium iron phosphate batteries (LFP batteries) are considered to be the safest batteries out there. These batteries do not contain toxic substances like cobalt and have very good thermal and chemical stability.

Q: If your lithium battery goes into protection mode, how do you wake it up?

A: It will come back on when the battery detects no issues within 30 seconds. If the battery has been discharged to 0% then you may have to jump it from another battery for 3 seconds to wake it up so it will take a charge with lead acid chargers. Using ionic lithium chargers you do not have to wake up the battery with another one. The ionic lithium charger wakes up the batteries automatically.

Q: How should lithium batteries be handled and stored?

A: If possible, lithium batteries should be stored on racking outside the premises in a secure, cool, well ventilated, dry storage area and away from sources of heat including direct sunlight. Ensure waste batteries are regularly removed from premises to avoid significant accumulations.

Q: How can I extend my lithium battery life?

A: To prolong battery life, consider doing partial charges up to 80% state of charge (SoC) instead of a 100% charge. If the lithium battery is going to reach 100% charge, make sure to take the device off power immediately once reaching that level.

Q: Can you overload a lithium battery?

A: NO. When overcharged, lithium ion batteries may overheat, explode and cause fires. Even slight overcharging reduces a cell's discharge capacity, leading to overdischarging, which increases impedance and heat generation, and decreases cell lifetime.

Q: Can you jump start a lithium battery?

A: Yes. you can. A lithium battery jump starter is an excellent choice if you need a safe, dependable, and portable device to jump start your automobile or lithium motorcycle battery.

Q: Can you put a lithium battery in parallel with an AGM battery?

A: Yes, you can. However, the Lithium battery will drain into the AGM as the resting voltage for AGM is lower than the lithium. That would take several weeks but if charged and used weekly the two types of batteries can be put in parallel.

Q: What happens if I charge my lithium deep cycle battery too high?

A: If you charge your lithium deep cycle battery above 15V for 12V battery, the BMS inside the battery terminal will turn off. The cut-off voltage settings will vary slightly depending on current levels, temperature and part tolerances. To turn ON the battery again, disconnect the charging source and let the battery rest for several seconds (~30 sec) it should come on. In the event the 12V battery had voltages higher than 18V, the internal BMS is damaged and will not turn ON.

Q: How long will my lithium battery last?

A: There are several factors that affect the life of a battery. Weather, temperature, recharge cycles, depth of discharge (DOD), discharge current, charging current, charging method, vibration and duration of static use can all have dramatic effects on battery life. A properly maintained Lithium Deep Cycle Battery should last roughly three times as long as lead-acid battery used in similar conditions. Life expectancy is typically 10+ years.

Q: How should I dispose of lithium-ion batteries?

A: Lithium-ion (Li-ion) batteries and devices containing these batteries should not go in household garbage or recycling bins. They can cause fires during transport or at landfills and recyclers. Instead, Li-ion batteries should be taken to separate recycling or household hazardous waste collection points.

Q: Why is recycling Li-ion batteries important?

A: Reusing and recycling Li-ion batteries helps conserve natural resources by reducing the need for virgin materials and reducing the energy and pollution associated with making new products. Li-ion batteries contain some materials such as cobalt and lithium that are considered critical minerals and require energy to mine and manufacture. When a battery is thrown away, we lose those resources outright—they can never be recovered. Recycling the batteries avoids air and water pollution, as well as greenhouse gas emissions. It also prevents batteries from being sent to facilities that are not equipped to safely manage them and where they could become a fire hazard. You can reduce the environmental impact of electronics that are powered by Li-ion batteries at the end of their useful life through the reuse, donation and recycling of the products that contained them.

Q: What materials are in Li-ion batteries?

A: The material composition, or “chemistry,” of a battery is tailored to its intended use. Li-ion batteries are used in many different applications and many different environmental conditions. Some batteries are designed to provide a small amount of energy for a long time, such as operating a cellphone, while others must provide larger amounts of energy for a shorter period, such as in a power tool. Li-ion battery chemistry can also be tailored to maximize the battery’s charging cycles or to allow it to operate in extreme heat or cold. In addition, technological innovation also leads to new chemistries of batteries being used over time. Batteries commonly contain materials such as lithium, cobalt, nickel, manganese, and titanium, as well as graphite and a flammable electrolyte. However, there is always on-going research into developing Li-ion batteries that are less hazardous or that meet the requirements for new applications.

Q: What is a BMS and its purpose?

A: Lithium-ion batteries are made up of multiple small cells connected together to provide the voltage and current needed for the application. The Battery Management System or BMS is responsible for keeping these cells working in unison so that they are charged and discharged correctly. Lithium-ion cells are more sensitive to overcharge and undercharge conditions than many other battery chemistries. The BMS monitors the charge and discharge of the battery to ensure the battery operates safely.

Q: Do I need to clean the terminals and/or does lithium corrode the terminals on the batteries?

A: Lithium-Ion batteries are sealed and do not accelerate corrosion. Some environmental conditions such as water exposure, saltwater mist or other may still cause corrosion on copper cable lugs, cables or non-stainless steel hardware. It is recommended to regularly inspect the terminals on the battery and clean them as needed.

Q: How do LiFePO4 batteries perform in cold temperatures?

A: Cold temperatures can be a battery's worst enemy – luckily, Ionic LiFePO4 batteries are more resilient to colder temps than lead-acid batteries. As such, the cells retain their capacity and voltage far better than traditional lead-acid ones when the temperature drops. If you're charging in below freezing conditions (below 0°C or 32F), make sure to cut your current all the way down to .0lC; If it's under 14° F (-10° C) it has to drop even further, down to .05C. Following this rule will save keep your Ionic Lithium Battery happy for the long haul.

Q: Is Lithium Battery safe to use?

A: Lithium batteries are generally safe and unlikely to fail, but only so long as there are no defects and the batteries are not damaged. When lithium batteries fail to operate safely or are damaged, they may present a fire and/or explosion hazard.

Q: Is it OK to store lithium batteries fully charged?

A: It's best to store your lithium-ion batteries at around a 40-50% state of charge if you plan to use them immediately. You should also be mindful that lithium-ion batteries can suffer damage if you overcharge them for too long.

Q: How do I know if my lithium-ion battery is bad?

A: Noise: Failing li-ion batteries have been reported to make hissing, cracking, or popping sounds. Odor: If you notice a strong or unusual odor coming from the battery, this is also a bad sign. Li-ion batteries emit toxic fumes when they fail. Smoke: If your device is smoking, a fire may have already started.

We're professional lithium battery manufacturers and suppliers in China, specialized in providing high quality custom service. We warmly welcome you to wholesale high-grade lithium battery made in China here from our factory. For price consultation, contact us.

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