24-hour service hotline
24-hour service hotline
POS device battery, Wearable device battery, Electronic scale , cell phone battery,
Address:
5th Floor, Building C, Funing High-tech Industrial Park, Xintian Avenue, Fuyong Town, Baoan District, Shenzhen
Tel:
+0755-81451866
Fax:
+86-755-29926528
Email:
purchase@hi-chipcom.com
First of all, we simply understand what the energy density of a battery is. There are two types of energy density, weight energy density and volume energy density. At present, the most referenced one is weight energy density. Its calculation formula is: weight energy density = battery capacity & times; discharge platform/weight, in Wh/kg (watt hour) /Kg); and the volume energy density calculation method only needs to change the weight of the above formula into volume, and the unit is Wh/L (watt hour/liter). Simply put, energy density is an evaluation of the battery's storage capacity. At first, this evaluation was not used to determine the quality of electric vehicles, but the policy requirements for the company's power storage capacity of lithium batteries. According to the requirements, the company needs to exceed 300 watt-hours/kg of power lithium battery cell specific energy in 2020, and the system's specific energy strives to reach 260 watt-hours/kg. From a marketing perspective, since this is a policy-making standard, it must be attractive…
The method of increasing the battery capacity is a conscientious approach. There are many ways to increase the capacity, the most of which is to start with the battery material. At present, ternary lithium-ion batteries are the highest proportion of power lithium battery types in China, and the proportion of lithium iron phosphate batteries has fallen very quickly. However, no matter how conscientious it is, it won't do anything good if it falls into the hands of the wrongdoer. In order to increase the battery capacity, some manufacturers have lowered the requirements for battery stability, and the safety hazards have increased. Therefore, some people in the industry worry that the rapid success in battery capacity may affect the safety of electric vehicles.
The capacity of the battery is divided into the rated capacity and the actual capacity. The rated capacity of the battery refers to the amount of electricity that the battery should supply when it is discharged to the final voltage at a rate of 5 hours at an ambient temperature of 20°C and 5°C, and is represented by C5. The actual capacity of the battery refers to the actual power released by the battery under certain discharge conditions, which is mainly affected by the discharge rate and temperature (so strictly speaking, the battery capacity should specify the charge and discharge conditions).
Shenzhen Haizhitong is a high-tech battery company, focusing on independent R&D, production, and sales of lithium-ion batteries. Because of its focus, it is professional.
Scan the QR code, add WeChat to get a quote
Product
About Us
Solution
Service
News
Русский