Energy batteries and power batteries are two different types of batteries, which have significant differences in performance, application scenarios and measurement standards. 1. Performance characteristics Energy batteries: As the name suggests, it is a type of battery whose main goal is to store a large amount of energy. The main feature of this type of battery is high energy density, that is, it can store more electrical energy per unit weight or unit volume. Therefore, energy batteries are very suitable for application scenarios that require long-term operation or high mileage. 1. Focus: Focus on storing more energy, and the main measurement indicator is specific energy (Wh/kg), that is, the energy that can be stored per unit weight or unit volume. 2. Characteristics: High energy density, can provide long-term continuous energy output, suitable for application scenarios that require high energy output. 3. Application scenario: Electric vehicles provide long-lasting power support for vehicles to ensure that the vehicle can travel a long distance. Energy storage system In the field of renewable energy, energy batteries are widely used in energy storage systems to balance the load of the power grid and improve the utilization rate of renewable energy. Power type battery: a battery designed according to the needs of high-power applications. Its main feature is that it can support high-rate charging and discharging, and usually works at a rated power of less than or equal to 1 hour rate. 1. Focus: With the feature of supporting high-rate charging and discharging, the main consideration is the specific power (W/kg), that is, the power output that can be provided per unit weight or unit volume. 2. Features: The discharge rate is large, and it can charge and discharge quickly, providing the vehicle with instantaneous high-power output, which is suitable for application scenarios that require frequent acceleration and deceleration or heavy-load starting. 3. Application scenarios: Mainly used in hybrid electric vehicles, pure electric vehicles, and also widely used in commercial vehicles, construction machinery, agricultural machinery, energy storage frequency modulation, rail transit, hybrid ships and other fields. 2. Measurement standards 1. Energy type battery: Mainly focus on specific energy (Wh/kg), that is, how much electrical energy can be stored in a battery per unit weight or unit volume. 2. Power type battery: Mainly focus on specific power (W/kg), that is, the maximum power output that a battery per unit weight or unit volume can provide. 3. Technology Trends 1. Technology Trends: With the continuous development of the new energy vehicle market, the requirements for battery performance are getting higher and higher. Energy-type batteries need to take into account charging and discharging performance and safety while improving energy density; while power-type batteries continue to make breakthroughs in improving discharge rate and cycle life. 2. Lithium-ion batteries: In practical applications, many lithium-ion batteries are designed to take into account both energy density and power density to meet the needs of different scenarios. For example, some advanced electric vehicle battery systems use battery technology that can provide high energy density to meet long-range requirements and sufficient power density to support rapid acceleration and energy recovery. Therefore, it can be said that lithium-ion batteries are both energy-type batteries and power-type batteries, depending on their specific design and application scenarios. With the continuous development of battery technology, future lithium-ion batteries are expected to achieve a higher balance and optimization in energy density and power density.