News_Made in PRC

272025-09

What are the typical capacity specifications for electric bicycle batteries

The capacity specifications of electric bicycle batteries are usually measured in ampere hours (Ah), and mainstream capacity specifications include; 10Ah、12Ah、16Ah、20Ah、32Ah、40Ah Wait, some high-end models or special purpose batteries may reach; 45Ah Even higher. The following are specific classifications and analyses:1、 Mainstream capacity specifications and applicable scenariosShort distance commuting type (10Ah-12Ah)Typical configuration: 36V12Ah, 48V10AhFeatures: Light weight, low cost, suitable for short distance commuting of 5-15 kilometers one way.Example:A 36V12Ah battery paired with a 250W motor provides a theoretical range of approximately 30 kilometers (subject to road conditions).A 48V10Ah battery paired with a 350W motor provides a range of approximately 25 kilometers.Daily commuting type (16Ah-20Ah)Typical configuration: 48V16Ah, 48V20Ah, 60V20AhFeatures: Balancing range and weight, suitable for medium dist

272025-09

What are the disadvantages of all solid state batteries

Although all solid state batteries have advantages in safety, energy density, and cycle life, their disadvantages are also significant, mainly reflected in the following aspects:1. High cost: The commercialization threshold remains highRaw material cost: The price of sulfide solid electrolytes (such as lithium sulfide) can reach up to 2 million yuan/ton, which is 5-10 times that of lithium carbonate. The unit price of laboratory grade sulfide electrolyte reaches 30 yuan/gram, resulting in a cost of 4.5 yuan/Wh for all solid state batteries, which is 2.3 times that of lithium iron phosphate batteries.Production equipment investment: All solid state batteries have extremely high requirements for the production environment (such as strict humidity control for sulfide electrolytes), require large equipment investment, and have a small initial production scale, making it difficult to reduce costs through large-scale production.

262025-09

How to convert between ampere hour and watt hour

The conversion between ampere hour (Ah) and watt hour (Wh) requires consideration of the battery voltage (V), as watt hour is a unit of energy (power x time), while ampere hour is a unit of charge (current x time). The following are detailed conversion methods and examples:1. Conversion formulaWatt hour (Wh)=voltage (V) x ampere hour (Ah)orampere hour (Ah)=watt hour (Wh) ÷ voltage (V)2. Conversion stepsDetermining battery voltage: The nominal voltage of the battery (such as 3.7V, 12V, 24V, etc.) is a key parameter for conversion, usually indicated in the battery casing or specification sheet.Apply formula calculation:If the ampere hour (Ah) and voltage (V) are known, calculate the watt hour (Wh):Wh=V AhIf the watt hour (Wh) and voltage (V) are known, calculate the ampere hour (Ah):Ah=VWh3. Actual examplesExample 1: Mobile phone batteryGiven conditions:Battery capacity=4000mAh (i.e. 4Ah), voltage=3.7VCalculate watt hour (W

252025-09

What is the difference between An Shi and Wa Shi

Ampere hour (Ah) and watt hour (Wh) are two important units in the field of batteries, used to measure the capacity and energy of batteries, respectively. There are significant differences between the two in terms of definition, physical meaning, application scenarios, and interrelationships. Here is a detailed comparison:1. Definition and Physical SignificanceAh, Ampere hourDefinition: Refers to the product of the duration of continuous discharge of a battery under specific discharge conditions (such as constant current) and the current.Formula: Ah=Current (A) Time (h)Physical meaning: Reflecting the ability of a battery to store charge, that is, "how much current can be released". For example, a 10Ah battery can discharge for 10 hours at 1A current or for 1 hour at 10A current.Characteristic: Only considers the amount of charge, without involving voltage or energy.Wh, Watt hourDefinition: Refers to the energy

242025-09

What are the advantages and disadvantages of all solid state batteries compared to liquid state batteries

Analysis of the advantages and disadvantages of all solid state batteries compared to liquid state batteriesadvantageSignificant improvement in safetyNon flammable and high temperature resistant: Solid electrolytes have a high ignition point, and the temperature of thermal runaway generally exceeds 300 ℃, far higher than the 200 ℃ below that of liquid batteries, effectively reducing the risk of fire and explosion.Inhibition of lithium dendrite growth: Solid state electrolytes have high mechanical strength and can physically block the penetration of lithium dendrites, avoiding the risk of short circuits. They do not ignite during needle puncture testing.No leakage risk: Solid electrolytes have no liquid components, completely eliminating electrolyte leakage and drying problems, and enhancing battery stability.Breakthrough increase in energy densityTheoretical upper limit high: The theoretical energy density of solid-state b

202025-09

What are the advantages and disadvantages of using lead-acid batteries in cold regions

The core disadvantage of using lead-acid batteries in cold regions is poor low-temperature performance, which is manifested in significantly reduced range, decreased charging efficiency, difficult start-up, and the risk of electrolyte freezing. However, these problems can be partially alleviated through technological improvements (such as graphene lead-acid batteries) and rational use (preheating charging, replacing cold resistant batteries). The following is a detailed analysis:Reduced battery life due to poor low-temperature performanceData shows that the optimal charging and discharging temperature for lead-acid batteries is 25 5 ℃. When the temperature drops below 0 ℃, the battery capacity will significantly decrease. For example, at -10 ℃, the capacity of lead-acid batteries may be reduced to 60% to 70% of room temperature; At -20 ℃, the capacity may only be about 40% left.Actual impact: This means that in winter in

192025-09

What are the disadvantages of using lithium iron phosphate batteries in northern regions

The main disadvantage of using lithium iron phosphate batteries in northern regions is poor low-temperature performance, which is manifested in significantly reduced range, decreased charging efficiency, difficulty starting, and even potential safety hazards. The following is a detailed analysis:Reduced battery life due to poor low-temperature performanceData shows that at 0 ℃, the discharge capacity of lithium iron phosphate batteries is about 88% of that at room temperature of 25 ℃, and the battery life begins to shrink significantly. At -10 ℃, the capacity decreases to 40%~55%, and the battery life is almost halved. At the extreme temperature of -20 ℃, which is common in northern winter, the capacity may be reduced to only 20% to 40%.Actual impact: This means that in winter in the north, the range of new energy vehicles equipped with lithium iron phosphate batteries will be significantly reduced, and car owners may enco

182025-09

What batteries have better long battery life, low temperature performance, and fast charging ability

In northern regions, if pursuing long endurance, low-temperature performance, and fast charging capability, ternary lithium batteries are a more suitable choice. The following is a detailed comparison and analysis of the two:performance comparisonEnergy density and endurance:Ternary lithium battery: The energy density of the battery cells generally reaches over 200Wh/kg, which can provide longer range for new energy vehicles under the same weight.Lithium iron phosphate battery: The energy density of the battery cell is about 110Wh/kg, and the endurance performance is relatively weak.Low temperature performance:Ternary lithium battery: It can still release about 70.14% of its capacity in a low temperature environment of minus 20 degrees Celsius, with strong low-temperature adaptability and minimal capacity degradation.Lithium iron phosphate battery: Under the same low temperature conditions, it can only release about 54.94%

172025-09

Which is more suitable for new energy vehicles, lithium iron phosphate battery or ternary lithium battery

If more emphasis is placed on safety, cost, and cycle life, especially for southern regions or mid to low end vehicle models, lithium iron phosphate batteries are more suitable; If pursuing long endurance, low-temperature performance, and fast charging capability, especially in northern regions or high-end models, ternary lithium batteries are even better. Here is a detailed comparison between the two:Lithium iron phosphate batterySafety: Lithium iron phosphate batteries are known for their excellent safety. Compared to other types of batteries, lithium iron phosphate batteries have a lower risk of thermal runaway in high-temperature environments. The decomposition temperature of its positive electrode material is as high as 700 ℃, and it only emits smoke and does not ignite when short circuited or overheated. The probability of puncture ignition is only 1/5 of that of ternary lithium batteries.Cycle life: The cycle life o

162025-09

What is the difference between lithium iron phosphate batteries and ternary lithium batteries

There are significant differences between lithium iron phosphate batteries and ternary lithium batteries in terms of materials, performance, application scenarios, and safety. The following provides a detailed comparison from the core dimensions:1、 Differences in material systemscathode materialLithium iron phosphate battery (LFP): using lithium iron phosphate (LiFePO ₄) as the positive electrode, containing iron and phosphorus elements, with an olivine structure.Three element lithium battery (NCM/NCA): The positive electrode is composed of nickel (Ni), cobalt (Co), manganese (Mn) or aluminum (Al), and the common combinations are NCM523, NCM622, NCM811 (numbers represent the nickel cobalt manganese ratio).Electrolyte and diaphragmBoth use organic electrolytes and polyolefin separators, but ternary lithium batteries require stricter control of the closed cell temperature of the separator (usually 135 ℃) due to poor thermal

152025-09

Which type of car power battery is safer

Lithium iron phosphate batteries are currently the safer choice for automotive power batteries, while semi-solid state batteries and all solid state batteries are expected to further enhance safety in the future. The specific analysis is as follows:1、 Comparison of mainstream automotive power battery types and safetyLithium iron phosphate batterySafety advantage: Stable chemical structure and low risk of thermal runaway. In acupuncture experiments, it is not easy to catch fire or explode, and the decomposition temperature can reach over 500 ℃. It is not easy to decompose and produce oxygen at high temperatures.Market application: Over 70% of the domestic vehicle loading volume is widely adopted by car companies such as BYD.Limitations: Low energy density and poor low-temperature performance (charging efficiency decreases when the temperature is below -5 ℃).ternary lithium batterySafety disadvantage: Poor thermal stability,

122025-09

What are the precautions for recycling and disposing of waste lithium batteries

The recycling and disposal of waste lithium batteries must strictly follow safety and environmental regulations. From individuals to enterprises, key aspects such as classified disposal, professional recycling, safe disposal, and resource regeneration must be implemented. Specific precautions are as follows:1、 Personal handling precautionsClassified advertisingLithium batteries (including mobile phone, laptop, button batteries, etc.) are considered hazardous waste and should be disposed of in trash cans labeled as "hazardous waste" or through community recycling bins and retail collection points.It is prohibited to mix lithium batteries with ordinary household waste and avoid mixing them with kitchen waste, paper, etc.safety protectionWrap the positive and negative terminals of the battery with transparent tape or electrical tape before discarding to prevent short circuit and fire.Damaged, bulging, or leaking bat

112025-09

How to dispose of waste lithium batteries

Waste lithium batteries need to be disposed of in an environmentally friendly manner through processes such as classified disposal, professional recycling, safe handling, and resource regeneration. The specific methods are as follows:1、 Disposal of waste lithium batteries in daily lifeAccording to the Implementation Plan of China's Household Waste Classification System, lithium batteries (including nickel hydrogen batteries, cadmium nickel batteries, etc.) are classified as hazardous waste and need to be disposed of in garbage bins labeled as "hazardous waste". Some regions may have special regulations for lithium battery recycling (such as requiring separate storage). It is recommended to consult the local environmental sanitation department or refer to community guidelines in advance.Processed through legitimate recycling channelsOfficial recycling points: Brands such as Apple, Huawei, Tesla, etc. have batt

102025-09

What certification is required for electric bicycle batteries?

Electric bicycle batteries need to pass the following certifications to ensure safety:1、 China Compulsory Certification (CCC)Starting from November 1, 2025, lithium-ion batteries and chargers for electric bicycles must pass CCC certification and be labeled with the certification mark before they can be shipped, sold, imported, or used for other business activities. This certification covers both individual batteries (cells) and battery packs, requiring each lithium battery to be labeled with a safe service life, engraved with a permanent and unique code that can withstand high temperatures (maintained at 950 ℃ for half an hour), and prohibiting the "cascading use" of waste lithium batteries on electric bicycles to curb illegal assembly and modification activities from the source.Certification BasisNational standard: GB 43854-2024 "Safety Technical Specification for Lithium ion Batteries for Electric Bicycles

092025-09

When is the expected mass production of all solid state batteries

All solid state batteries are expected to begin vehicle validation in 2027 and achieve mass production by 2030. The following is a detailed analysis of the production time of all solid state batteries:1、 Production schedule of car companiesChangan Automobile plans to complete the investment and construction of a 50GWh battery cell production capacity for Era Changan from 2025 to 2026. It is expected to achieve solid-state battery installation verification by 2026 and gradually promote the mass production of all solid state batteries by 2027, with an energy density target of 400Wh/kg.SAIC Group announced that its new generation of solid-state batteries will be mass-produced and delivered in 2026, and the Zhiji new car equipped with all solid state batteries will also be mass-produced and delivered in 2027.Guangzhou Automobile Group has developed a 30Ah all solid state power battery with an energy density of 400Wh/kg. It pla

092025-09

What kind of battery is safer to use for electric bicycles in Iceland?

When using electric bicycles in Iceland, lithium iron phosphate batteries and sodium batteries are currently the safest choices, with outstanding performance in thermal stability, low-temperature performance, and safety standards. The specific analysis is as follows:1、 Lithium iron phosphate battery: preferred for safetyExcellent thermal stability. The thermal runaway temperature of lithium iron phosphate batteries exceeds 500 ℃, and they do not ignite or explode during extreme tests such as needle punching and overcharging. Their chemical properties are stable. Its energy density reaches 230Wh/kg, with a cycle life of up to 5000 times (about 10 years), supporting 10 minute fast charging to 80% power, suitable for scenarios that require high safety and long lifespan.Low temperature performance optimizationThrough technological upgrades, lithium iron phosphate batteries can maintain 80% capacity even at minus 20 ℃, and with

082025-09

Is Iceland suitable for driving electric bicycles?

Iceland is suitable for driving electric bicycles, but it requires comprehensive consideration of climate, infrastructure, policies, and usage scenarios.Climate conditions: Low temperature impacts need to be addressedIceland's winter is long and cold, and low temperatures can significantly reduce the activity of electric bicycle batteries, leading to a shortened range. For example, in an environment of -5 ℃, the actual range of an electric vehicle may decrease by more than 50%. If electric bicycle batteries are not equipped with low-temperature resistant technology, users will need to charge frequently or face range anxiety. In addition, Iceland has frequent snowstorms and slippery or icy roads, which may increase cycling risks. Therefore, it is necessary to choose a vehicle with anti-skid tires and stability control system.Infrastructure: The charging network is gradually improvingCharging stations in Iceland are main

052025-09

Analysis of the Trends in China's Electric Bicycle Market and the Development of Imported Brands

1、 Core changes after the implementation of the new national standard in the domestic marketTechnical specification upgradeSpeed limit and power-off mechanism: The new national standard requires electric bicycles to automatically power off when the speed exceeds 25 kilometers per hour, and improves tamper proof design from three aspects: battery pack, controller, and speed limiter, significantly raising the technical threshold.Weight and range optimization: The maximum weight limit of lead-acid battery models has been increased from 55 kilograms to 63 kilograms, and some models have increased their range by about 20 kilometers, alleviating users' range anxiety.Safety performance enhancement: The proportion of plastic material shall not exceed 5.5% of the vehicle weight, and the requirements for fire prevention and flame retardancy shall be strengthened; Shorten the braking distance by half and improve braking safety.Pe

042025-09

What are the brands of electric bicycles imported from China

The electric bicycle brands imported from China mainly include the following:EMMELLE: Originating from the UK and affiliated with Shenzhen Zhonghua Bicycle Group, it has a high influence and high praise rate in the field of electric bicycles.Electra: from the United States, founded in 1993, combines high technology with elegance to provide users with a comfortable riding experience. It is a popular urban leisure bicycle brand in North America.PHILLIPS: A British brand founded in 1892, known for electric cars and bicycles, with a long history and good reputation.Yamaha: A Japanese brand that has excelled in areas such as motorcycles since 1955. It is also one of the early companies to sell electric assisted bicycles and has mature technology.SUPER73: Headquartered in Orange County, California, we are committed to developing products that integrate motorcycle traditions with youth culture, and have a passionate customer base

032025-09

Which countries are the main export markets for China's electric bicycles

The main export markets for Chinese electric bicycles include European countries (such as the Netherlands, Germany, Italy, Poland), Southeast Asian countries (such as Indonesia, Thailand, Vietnam), and Central Asian countries (such as Kazakhstan, Kyrgyzstan, Uzbekistan). Here is a detailed analysis of these markets:European market:Netherlands, Germany, Italy: These countries have long been the main export destinations for Chinese electric bicycles. The support for green travel in the European market continues to increase, and the acceptance of high-quality electric bicycles from China in the European market is rapidly increasing. For example, the UK has officially lifted the "double reverse" tariffs on Chinese made non folding electric bicycles, providing a new growth breakthrough for Chinese electric bicycles to enter the European market.Poland: From January to April 2025, China's exports of electric bicycle