Lithium Battery Solutions
We provide a variety of lithium-ion battery solutions, focusing on home energy storage lithium battery, photovoltaic energy storage lithium battery, solar battery, communication base station lithium battery, UPS lithium battery, outdoor mobile power, electric boat (yacht) lithium battery, electric car lithium battery, AGV robot battery, industrial power equipment lithium battery, etc.
We have our own production of single cell , 18650 battery, 32650 battery, 32700 battery, 3.2V 100Ah~304Ah prismatic battery. We have also developed battery management system, battery charger, and convenient packages to provide the world with smarter, safer, and lower cost new energy products.
Our products have established a good reputation in the industry, and our products have passed various lithium battery certifications and are sold to countries around the world.
As the market is flooded with various types of batteries, it can be overwhelming to find the right choice to meet your needs.
We can customize multifunctional lithium battery packs in different sizes and shapes to meet the needs of our customers for new energy projects. And we specialize in providing the perfect solution for your new energy project.
Table of Contents
(1) Lithium Iron Phosphate (LiFePO4 Cells) Battery
The lithium iron phosphate battery is a battery pack composed of lithium iron phosphate positive electrode and negative electrode, and the cathode material is lithium iron phosphate (LiFePO4). The electrolyte is a lithium ion conducting non-aqueous solution or a solid electrolyte.
Lithium iron phosphate batteries have a high temperature resistance, high discharge voltage, good cycle life and safety, which is suitable for large capacity power batteries.
The battery pack is used for electric vehicles, electric bike batteries and other energy storage occasions. The battery chemistry is safe and stable, offering substantial advantages over other lithium.
The use of high-quality raw materials, the use of special processes, the structure of the battery designed to have a strong safety performance, the use of a safety valve, the battery itself to ensure safety.
SixClocks has been developing a wide range of high performance Lithium Iron Phosphate (LiFePO4) battery packs, which are designed to meet the critical safety and reliability requirements of the European and International markets.
Lithium iron phosphate (LiFePO4) battery advantages:
1. The high working temperature of lithium iron phosphate (LiFePO4) battery: up to -20~60°C, which is suitable for most countries in the world.
2. Long life lithium iron phosphate (LiFePO4) battery: more than 2000 cycles, which is 6 times of lead-acid battery.
3. High discharge voltage of lithium iron phosphate (LiFePO4) battery: 3.2V, compared with 3.6V of ternary battery, there is no need for high voltage charging, which reduces the cost of the charger.
4. High safety of lithium iron phosphate (LiFePO4) battery: There is no fire and explosion for overcharging or overdischarge.
5. High load rate of lithium iron phosphate (LiFePO4) battery: continuous discharge current is more than 3C.
Lithium batteries are better for the environment
Lithium-ion batteries are better for the environment because they have a low impact on the environment. They contain less hazardous materials than other types of batteries and they are easier to recycle.
Easy to Maintain
Lithium batteries are easy to maintain. You should inspect them regularly for damage and keep them clean. You can extend their life by storing them in a cool, dry place. If you need to replace the battery, you can do it yourself with just a few tools.
Versatile
They are used in many devices, including motorcycles, Electric vehicle，golf cart, electric bus,Robot, RV, forklift, electric wheelchair, solar energy, street light, communication base station, mobile energy storage, UPS, ship, etc.
Lithium-ion batteries are versatile, meaning they can be used in a variety of devices. They are also strong and can last a long time.
(2) Home Energy Storage Systems
The home energy storage system adopts a scientific internal structure design, advanced battery production process, and is equipped with an advanced battery management system as well as an energy conversion system, featuring high specific energy and long life, safety and reliability, and wide operating temperature range. This energy storage system is the ideal green energy storage power product for wind, photovoltaic energy storage, smart grid and other industries.
Home energy storage devices store electricity locally for future use. Electrochemical energy storage products, also known as Battery Energy Storage Systems (or BESS for short), have at their core rechargeable batteries, usually based on lithium-ion batteries, controlled by a computer with intelligent software to handle the charging and discharging cycles.
The power generated by the photovoltaic is supplied to the household load, while the excess power is stored in the energy storage battery, and the power in the storage battery is used for the load when there is no light.
The inverter has the advantages of high conversion efficiency, low power consumption and strong carrying capacity; the product is intelligent and can be set to utility priority or inverter priority mode according to the usage environment.
As local energy storage technology for home use, they are a small companion to battery-based grid energy storage and support the concept of distributed generation. When used in conjunction with on-site power generation, they can virtually eliminate power outages in off-grid lifestyles.
Application：
1. Ordinary home scenery power storage, small commercial area, office uninterrupted power supply field.
2. Energy shortage areas.
3. Natural disaster-prone areas.
4. Unstable power or isolated off-grid areas
System characteristics：
1. Safe, efficient and easy to operate.
2. Use of safe, high-performance lithium iron phosphate batteries, with a long service life, small size, light weight, environmental protection and pollution-free features.
3. Simple assembly, convenient operation, the user only needs to connect the fan, utility and access to the load.
4. CPU management, intelligent control, modular composition, humanized interface LCD display; built-in charger, high charging efficiency.
5. Small conversion power consumption of the whole machine, high inverter efficiency; expandable backup battery
6. Strong load capacity, low failure rate, long life, simple maintenance
7. Perfect protection function: low voltage, high voltage, high temperature, short circuit, overload protection, etc.
With the development of battery technology and the rapid decline in cost, lithium batteries have now become the mainstream choice in household energy storage projects, with a market share of more than 95% of new chemical batteries. Compared with lead-acid batteries, lithium batteries have the advantages of high efficiency, long cycle life, accurate battery data, and high consistency.
(3) Solar Photovoltaic Power Supply System
Solar power supply system composition
The solar power system consists of solar cells, solar controller, and battery (group). If the output power is 220V or 110V AC and is complementary to utility power, an inverter and utility smart switcher are required.
1. solar cell array that is solar panels
This is the most central part of the solar photovoltaic power generation system, its main role is to convert solar photons into electricity, so as to promote the work of the load. Solar cells are divided into monocrystalline silicon too cells, polycrystalline silicon solar cells, amorphous silicon solar cells.
As monocrystalline silicon cells than the other two types of robust, long service life (generally up to 20 years), high photoelectric conversion efficiency, resulting in it becoming the most commonly used battery solar battery.
2. Solar charge controller
Its main job is to control the state of the entire system, while the battery overcharge, over discharge to play a protective role. It also has a temperature compensation function in places where the temperature is particularly low.
3. Solar deep cycle battery pack
The battery rechargeable battery, as the name implies, is the storage of electricity, which mainly stores the electrical energy converted from solar panels, generally lithium batteries, which can be recycled many times and have a long life. And we can customize a variety of solar battery pack.
In the whole monitoring system. Some equipment needs to provide 220V, 110V AC power, and the direct output of solar energy is generally 12VDc, 24VDc, 48VDc. So in order to provide power to 22VAC, 11OVAc equipment, the system must be increased DC / AC inverter, the solar photovoltaic power generation system will be generated in the DC power into AC power.
Solar Power Generation Principle
The simplest principle of solar power generation is what we call the chemical reaction, that is, the conversion of solar energy into electricity. This conversion process is the process of solar radiation photons through the semiconductor material into electrical energy, usually called the “photovoltaic effect”, solar cells are made using this effect.
We know that when the sunlight shines on the semiconductor, part of the photons are reflected off the surface, the rest is either absorbed by the semiconductor or transmitted by the semiconductor, which is absorbed by the photons, of course, some become hot, and some photons are colliding with the atomic valence electrons of the semiconductor, so that a hole pair of electrons is produced.
In this way, the sun’s energy to produce electron-hole pairs in the form of transformed into electricity, and then through the semiconductor internal electric field reaction, to produce a certain current, if a piece of the battery semiconductor connected in various ways to form multiple current voltage, so as to output power.
(4) Electric Vehicle Lithium Battery
We all know that the world’s hottest battery is lithium iron phosphate battery, after testing pinprick experiments, safety are better, its PACK process is more advanced, energy density, high temperature performance is more stable, is slightly worse low temperature resistance, not easy to catch fire and other features are widely welcomed by the electric two-wheeled, electric vehicles. The use of long cycle life, the use of high safety in the car, cycle life in more than 2000 times, the longest can be used 3000 times.
Electric vehicles as a necessary tool for the public’s daily travel, lithium battery safety is increasingly important to everyone. As an important part of the electric car power supply, the safety of the motor and lithium battery is indeed the most basic guarantee of an electric car. Reasonable design of the core support safety spacing to provide the core cooling path is conducive to the safe cooling of lithium batteries.
New energy electric car lithium battery support fast charging, working temperature range are relatively wide, its life is also relatively long, so the battery itself is rarely occurrence of explosion or spontaneous combustion these phenomena, relatively safe.
As the power battery for electric vehicles is now composed of a large number of individual lithium battery pack, the whole set of power battery is very large and placed in the chassis.
Depending on the capacity of the battery can run 30 to 45 km, the weight is only about 1/5 of the lead-acid battery, lithium battery electric bicycle biggest advantage is the long life.
In the use of lithium batteries should be noted that the battery is placed for a period of time into a dormant state, when the capacity is lower than normal, the use of time is shortened. But lithium batteries are easy to activate, as long as 3-5 times after the normal charge and discharge cycle can activate the battery to restore the normal capacity. Due to the characteristics of the lithium battery itself, it is almost no memory effect. Therefore, users of new lithium batteries in the activation process, is no need for special methods and equipment.
Consumers in charging lead-acid batteries, nickel batteries, have been worried about the battery memory effect, and so with lithium batteries, lithium batteries or chargers will automatically stop charging after the battery is full, we can all breathe a sigh of relief, lithium batteries do not carry the memory effect.
Lithium batteries are lightweight, environmentally friendly, and do not produce environmental pollution after disposal.
(5)Lithium batteries for electric boats (Yachts)
Ship market lithium iron phosphate battery application gradually into good shape, electric ships need to carry a larger number of batteries, the battery discharge rate, cyclability, cost requirements are also higher. Applied to the electric ship lithium iron phosphate battery in safety, energy density, cycle performance and other aspects of obvious advantages.
Based on the comprehensive consideration of safety performance, cost, energy density and other factors, ternary lithium battery or lithium iron phosphate battery is currently selected as the marine power battery.
The electrification of ships is the inevitable trend of future development. Electric ships can significantly reduce the pollutant gas emissions of ships, and some of them can even achieve zero emissions. As the international ship emission regulations continue to improve, and the ship power battery, hybrid technology continues to mature, electric ship market recognition continues to rise, become the focus of future ship industry development.
In addition, in terms of operating costs, the operating costs of electric ships are significantly lower than those of diesel and LNG-fueled ships. Meanwhile, the maintenance cost is relatively low because of the simple structure, few rotating parts and reliable work of electric ships.
Electric ships need to carry a larger number of batteries and require batteries with high discharge rate for a short period of time, which will, to a certain extent, increase the heat of the battery, and the high temperature, cyclability and cost of the battery is particularly important. Compared to lead-acid batteries, lithium iron phosphate batteries have more energy density and volume advantages.
With the future of lithium iron phosphate battery applications in the field of electric ships, the proportion of the product price will show a downward trend. The current lithium battery for electric ships uses lithium iron phosphate system power battery.
Based on safety and economy, lithium iron phosphate battery is suitable for global electric ships, the power battery and BMS battery management system are developed by our own team, and the power battery products have passed the experimental test and obtained the approval certificate of China Classification Society. And the charge and discharge multiplier reaches 20C, and the ship power maneuverability is good.
In recent years, under the background of global carbon reduction, the green development path of shipping industry gradually points to new energy ships, and the development of low-carbon and zero-carbon emission ships has become a trend. Among them, battery-powered ships have become one of the focal points of the ship power industry.
As one of the frontier developments in the ship industry, the advantages of electric ships are very obvious. First of all, electric ships have excellent energy saving and emission reduction effect and low energy consumption, because the energy efficiency of DC propulsion is very high, basically can reach more than 95% energy efficiency conversion rate; secondly, compared with the situation that the fuel cost of diesel power system is high and the emission pollution problem is serious, etc., the investment in electric ships can substantially save fuel consumption, and pure electric ships also have the characteristics of low noise and high comfort, which are beneficial to the development of ecological construction. It is of great interest.
(6) Outdoor Energy Storage Power Supply
Outdoor mobile power has a wide range of applications, usually travel, outdoor camping and picnics can be used, sudden power outages at home or natural disasters that cause damage to the power grid can also be used for temporary power supply of outdoor mobile power.
1. wide range of uses
Outdoor mobile power in outdoor camping, self-driving tourism, outdoor fishing, outdoor office, outdoor live, family emergency, car emergency, medical equipment and rescue construction and other scenarios is very useful, can be used to power a variety of electronic equipment and tools.
2. Long life and high security
Built-in high polymer lithium-ion battery (ternary lithium battery or lithium iron phosphate battery), configured with BMS battery management system and fireproof materials to ensure the life of the battery and the safety of the process; at the same time, the battery capacity and power, can simultaneously provide power support for multiple power-using devices, greatly enhancing the endurance.
3. Strong compatibility
It has a wide variety of interfaces, with AC output interface, USB output interface, Type-C output interface, car charger output interface and other interfaces, which is convenient for users to use on demand in different scenarios, more selective and comprehensive.
4. Easy to carry
Most of the outdoor mobile power is not only light weight, small size, but also comes with a handle, so you can pick up and go, portable travel, as far as possible to reduce the burden of travel.
SixClocks 500W ~ 3000W outdoor mobile power, using safe explosion-proof battery cells, long life of the battery cell, long life, built-in advanced BMS battery management system, focusing on the protection of the battery cell overcharge over discharge, overload over voltage, overcurrent short circuit.
Outdoor energy storage power supply is a portable power station, it uses portable solar panels to charge the battery, the stored electricity can be used for charging or operating other equipment, outdoor power supply is popular in outdoor camping, RV travel, outdoor live broadcast, outdoor construction, location shooting and emergency backup power.
Outdoor energy storage power supply has the characteristics of light weight, small volume, high energy density, large capacity, high power, long life, low failure rate,, fast charging, strong stability, and also can output DC, AC and other common power interfaces, and can power cell phones, laptops, drones, photography lights, projectors, off-road enthusiasts field power, rice cookers, electric fans, kettles, car emergency start and other equipment.
(7) Battery Management System
BMS battery system is commonly called battery nanny or battery housekeeper, mainly for intelligent management and maintenance of each battery cell, preventing overcharging and overdischarging of the battery, prolonging the service life of the battery, and monitoring the status of the battery.
BMS battery management system unit includes BMS battery management system, control module, display module, wireless communication module, electrical equipment, battery pack for powering electrical equipment and collection module for collecting battery information of battery pack, said BMS battery management system is connected to wireless communication module and display module respectively through communication interface, the output end of said collection module is connected to the input end of BMS battery The output of said collection module is connected to the input of the BMS battery management system, the output of said BMS battery management system is connected to the input of the control module, said control module is connected to the battery pack and the electrical equipment respectively, said BMS battery management system is connected to the server side of the server through the wireless communication module.
System architecture
1. master board: collects sampling information from each slave board, communicates with the whole vehicle through the low-voltage electrical interface, controls the relay action in the BDU, implements monitoring the various states of the battery, and ensures the safe use of the battery during the charging and discharging process.
2. slave board: monitor the module’s individual voltage, individual temperature and other information, the information will be transmitted to the main board, with battery equalization function, the communication method between the slave board and the main board is usually CAN communication or daisy chain communication (a kind of communication method from the center to the periphery like the shape of a daisy).
3. BDU: connected to the vehicle’s high-voltage load and fast-charge harness through the high-voltage electrical interface, including pre-charge circuit, total positive relay, total negative relay, fast-charge relay, etc., controlled by the motherboard.
4. high-voltage control board: can be integrated in the main board or stand-alone, which monitors the voltage and current of the battery pack in real time, and also contains pre-charge detection and insulation detection functions.
System Functions
BMS battery management system realizes the following functions.
(1) measurement of battery terminal voltage
(2) Energy equalization between single cells.
That is, the equalization of charging for a single battery, so that each battery in the battery pack to achieve a balanced and consistent state. Equalization technology is a key technology of battery energy management system that the world is committed to research and development.
(3) Battery pack total voltage measurement
(4) Battery pack total current measurement
(5)SOC calculation
Accurately estimate the State of Charge (SOC) of the power battery pack, i.e., the remaining battery power, to ensure that the SOC is maintained within a reasonable range to prevent damage to the battery due to overcharging or overdischarging.
(6) Dynamic monitoring of the working status of the power battery pack.
In the process of battery charging and discharging, the terminal voltage and temperature of each battery in the battery pack, charging and discharging current and total voltage of the battery pack are collected in real time to prevent the battery from overcharging or over discharging.
(7)Real-time data display
(8)Data recording and analysis
At the same time, the problematic batteries are selected to maintain the reliability and high efficiency of the whole battery operation.
(9)Communication networking function.
We have a technical team with 12 years of experience in developing battery management systems
(8) Battery Charger
Intelligent charging technology, different kinds of batteries, using different charging modes, can accurately track and detect the charging process of the battery, so that it is always in the best electrochemical reaction state, prolonging the service life of the battery.
The product has the functions of automatic capture, tracking battery voltage, locking charging current, reverse connection protection, automatic identification of positive and negative battery polarity, temperature rise sensing, buck stay, etc. It is safe and reliable.
Advantages：
High working voltage, small size, light weight, high energy efficiency, long service life, fast charging safety, wide temperature range, small discharge current, no memory effect, no environmental pollution.
Protection features：
Overheat protection
When the internal temperature of the charger reaches the over-temperature protection point, the charger automatically stops and the charging indicator (red) flashes to warn.
Short circuit protection
When the charger output is accidentally short-circuited, the charger automatically turns off the output
Reverse polarity protection
When the battery is reversed, the charger will automatically cut off the link between the internal circuit and the battery
Battery disconnection protection
When the battery is disconnected, the charger will time shutdown when the battery cannot be filled to 100%.
Application: Mainly used for electric motorcycle, golf cart, caravan, sightseeing car, cleaning car, low speed car, solar energy, etc.