Battery basic design and fundamental steps

Designed battery power are engaged in chemical development and scientific research workers and technical personnel necessary knowledge and skills. Battery design is in accordance with the requirements of equipment to provide the best performance of the power supply or power supply. Therefore, the battery design must first be used to satisfy the electrical requirements and is optimized so that it will have the best overall performance, in order to determine the battery's electrodes, electrolyte, membrane, shell and other parts of the parameters, and reasonable with them, made of a certain specification and targets a cell or dell laptop battery. 2, the battery design requirements Batteries are Designed to meet the target (user or equipment) carried out at the request. Therefore, when the battery design before, we must first know the object of detailed performance indicators and the use of dell 2834t , dell 4834t requirements generally include the following: Battery voltage; Battery current job, that is, the normal discharge current and the peak current; Battery working hours, including the continuous discharge time, use the period or cycle of life; Battery work environment, including the battery in which job status and environmental temperature; The maximum allowable size of the inspiron 2000 battery , latitude ls battery . At the same time should also be considered: the source material; battery performance; battery characteristics of the determinants of battery technology; economic indicators; environmental factors. Evaluation of battery performance of key indicators Battery performance in general, primarily through the following aspects to evaluate. (1) refers to the capacity of latitude x300 battery , dell w0465 capacity at a certain discharge conditions, can be obtained from the battery power, that is current on the time points, the general has Ah or mAh to express it directly affects the maximum battery current job and working hours. (2) The discharge characteristics and the internal resistance of the battery discharge characteristics are approved batteries discharge at a certain system, its working voltage stability, voltage level of the platform as well as the large current discharge performance, it said the dell 1g222 , dell bat3151l8 with the load capacity. Battery internal resistance including ohmic internal resistance and electrochemical polarization resistance, large current discharge, the resistance of the discharge characteristics of particularly apparent. (3) Operating temperature range there is the working environment and electrical conditions require the use of battery at a specific temperature range with good performance. (4) storage performance battery storage for some time, due to certain factors so that performance changes, cause the battery self-discharge; electrolyte leakage; battery short circuits. (5) cycle life (secondary batteries) are referring to the cycle life rechargeable inspiron 2600 battery, inspiron 2650 battery system must be in accordance with the charging and discharging its functions reduced to a certain extent (for example, the capacity of the initial value of 60%) when the cycle number. (6) internal pressure and resistance to charge-off performance (secondary batteries) for Ni-Cd, MH-Ni-based rechargeable batteries such as sealed, high current battery charging process can achieve the balance between internal pressure to balance the stress of high and low, the battery resistance high-current charge-off performance measure battery performance are important indicators of good or bad, if the battery internal pressure can not balance or equilibrium pressure is too high, it will cause the battery pressure limiting device (such as explosion-proof ball) to open the inspiron 2200 battery , dell 312-0292 battery caused by discouraging or omitted fluid, and thus quickly cause battery failure. If the pressure limiting device failure, there may cause battery cracking or explosive shell. Battery design the basic steps Battery design Designed in a clear mission and fully prepared, you can design. User requirements in accordance with the inspiron 1000 battery , the battery design ideas, there are two: one is for the use of electricity and equipment to provide rated power capacity; another is given the form factor power supply, research and development of performance specifications of the new batteries or special battery. 1 to determine the capacity of the battery design steps Determine the combination of the battery cell body Alto number of job monomer dell 367759-001 voltage and operating current density. In accordance with user requirements of the job to determine the total battery pack voltage, operating current, such as indicators, the selected cell line, in the light of the series "V curve" (empirical data or through the experiment proceeds) to determine the work of monomer inspiron 6000 voltage and operating current density. Determine the battery pack in the number of single cell. The number of monomer battery voltage = battery job total monomer electric / battery voltage Calculation of battery capacity In accordance with the requirements of current job and working time rated capacity. Rated capacity = current * time job Determine the design capacity of Design capacity = nominal capacity * Designed coefficient Coefficient is one of the design in order to ensure the reliability and service life of the inspiron e1505 set, and general admission 1.1-1.2