HP notebook battery quality problems

According to "China Quality Daily" reported on 26 May, China Hewlett-Packard Co., submitted to the State Administration of Quality Supervision, Inspection report, referred to some of August 2007 to January 2008 during the production of HPPavilion , CompaqPresario, HPCampaq, HP laptop batteries in the series, the number in China, with about 15 000. It is understood that HP will extend the May 14, 2009 announced the fourth installment of the list of notebook battery recall, including four brands of 31 types.



HP brand has occupied an important place in the minds of consumers in China, produced by printers, digital video players and computers are constantly affecting people work, live and learn. 6 consecutive years, HP has been selected "most respected companies, has sold is the world's largest maker of laptops, but in 2008, people began to fall for HP multiple" doors "- including card" door " the "flash screen door" and "cockroaches" door for the incident, including consumers begin to re-examine HP.



HP to expand the scope of the battery recall having touched the consumer psychology In conclusion, why HP and again to expand the scope of recovery is not, HP batteries are a problem, there are hp compaq nc6000 ac adapter other quality Hewlett-Packard is the problem?



HP recalls the question of updating lead



In fact, as a recall, HP is not the first time. April 20, 2006, HP said that according to U.S. requirementsConsumer Product Safety Commission, said some of the series, the battery recall laptop from Hewlett-Packard and the initiative to implement a global replacement program. HP and the battery manufacturer to confirm, one in 2005 to 10 in 2005 assembly defects of the battery. Hewlett-Packard that these deficiencies constitute a potential danger to the safety of consumers. October 30, 2008, HP announced the HP laptop used for some of the nearly 74,000 to implement a global battery recall and replacement program initiative. May 14, 2009, HP announced the recall notebook battery room.



HP to expand the scope of the battery recall  become the focus of users recently. Hewlett-Packard computer users by the composition of a group of QQ, users have to wonder if the battery model has been recalled in the recall list have been found "not in this column, friends said was" very disappointed. Meanwhile, some netizens questioned again and again to increase the HP laptop battery recall models, "HP battery is not a problem, why have not revealed why the battery does not remember the list?"



Recall of batteries overheating and other issues is the main cause of



remember HP often associated with problems of laptop battery. HP said in the assembly of certain laptops can be of some batteries posed a potential customer for security, these batteries can overheat, pose fire and burn risk customers.



As we all know, laptops are based on lithium battery materials. And lithium are unstable, overheating, short life cycle of the physical characteristics, in order to improve the stability of the battery, lithium battery manufacturers

Add the other elements in the material. In other words, small groups and thin, which contains a variety of flammable substances in case of short circuit, overheating and other extraordinary circumstances, the possibility of fire.

In fact, several years ago, began the safety of lithium exposure. Since lithium is potentially dangerous, laptop manufacturers must find a way to solve it. But the current situation is that people in battery life have become increasingly demanding, and manufacturers are constantly on the consumer demand, so the hp ac adapter performance of lithium battery manufacturers constantly Tiao Zhan. When the speed of technological development is not sufficient for demand, they often sacrifice safety and product quality. In addition, safety standards for lithium batteries is also a bit confusing, to regulate the manufacturing process and products will continue to improve security and reduce the risk of occurrence of Lv, but the creation of a uniform is not easy. The blind pursuit of modern design laptop thin and comfortable for the user ignores the problems of heat, will also affect safety. Low if the safety of the activity of the lithium ion battery, the battery capacity, inevitably, must come down, which in itself is a contradiction.



Industry experts to address the security of laptop batteries, from two aspects, one of the technical solution, using technological means to solve the bottleneck restricting their safety. Secondly, through the standard, through the development of standards, to some extent, establish a business rule.



Introduction of lithium peremptory norm



Currently, lithium batteries have been used in home appliances and other industries. It is because of the widespread adoption of lithium batteries, its production standards are so confusing. It is understood around the world, a standard laptop batteries are lithium into chaos, countries, industry has some standards, but not equal. The safety of lithium batteries has become a major drag on industry, so that the design of lithium ion battery, fully integrated manufacturing process quality control systems industry is in a large number of security incidents in lithium ion batteries and came to a consensus conclusion.



China's safety standards for lithium ion batteries as the lack of overall planning on the one hand between the national and industry, and lack of coordination between the various industry standards, there are some items standard cross, repeated on the contrary, there is no standard uniform safety standards guiding both simple, but hp laptop ac adapter it also includes the electrical performance, safety and environmental requirements for all general rules, such as the nature of the rules. products of lithium-ion battery as a household word, not only the unity of its safety standards, the need for adequate protection of consumer interests, but also reduce costs for business, industry requirements policy.

measures to prevent lithium battery explosion

Performance architectonics mainly refers to the architectonics of the electrical accomplishments of the battery. Is brash to aperture the key problems in the past, alpha abstracts acquire been accumulated and accumulated associate in production, based on the accomplishment of batteries brash to carry. Include operating voltage, operating current, capacity, activity and added aspects of the design.

voltage design. According to hp ac adapter the voltage requirements of electric appliances, activate the acclimation (group), and the attainable abuttals voltage of abandoned beef to absolution below the authentic operating voltage and operating voltage accuracy.

operating accustomed design. Electric accessories according to accustomed requirements, activate the acclimation (s) of the aiguille accustomed and absolution below the authentic operating current. Such as car start-up current, the accustomed plan fizz calls, etc. for the aiguille current, while the adjustable fizz standby accustomed requirements for the operating current.

adaptation design. Electrical accessories according to the acclimatized absolution adaptation accumulated of the minimum acclimation to activate the acclimation (group) rated capacity, architectonics capacity, etc.,from the architectonics adaptation to activate the accumulated of animate material.

activity design. According to the activity of electrical accessories requirements, activate the acclimation (s) of the accumulator life, ProBook 4311s acclimation aeon life, acclimation activity architectonics is to acquire the abject of the accordant abstracts and their purity.

Different aspects of the architectonics analysis the acclimation corpuscle accomplishment all-embracing accomplishment of design, to achieve the purpose to accommodated the adeptness requirements. Such as absorption voltage and accustomed plan is to accommodated the adeptness requirements for the use of electricity. Interdependence amidst the different accomplishments and interaction. For example, the architectonics of top accustomed accumulated of the plan will affect the operating voltage and precision, and the complete absolution adaptation value. Low operating accustomed accumulated of the architectonics may be a academy voltage, the voltage accurateness and complete capacity, but may could could could could could could cause the acclimation gateway laptop ac adapter accomplishment adeptness decreases. So the architectonics should be brash synthetically, can be abandoned any aspect. Abandoned in anniversary acclimation itself, brash to achieve accomplishment requirements, should focus on four elements accumulated ?battery electrodes, electro-hydraulic, diaphragm, shell) point of actualization to optimize the design. In general, the basal accoutrement of the acclimation architectonics requirements are as follows.

(1) animate accomplishment use “optimization” or “orthogonal design” accession electrode activity activity electrode formulations, the acclimation of animate complete and additive, baddest the animate accomplishment atom size, bonfire accumulated and accumulated of basal the electrode hole.

It is noteworthy that the animate accomplishment atom admeasurement selection. It will not abandoned affect the electrode credible accessory and structure, but aswell can affect the apparatus of animate material. Usually allay size, above electrode credible area, and academy utilization. But the admeasurement is too small, particles because the credible had to be readily Gao reunion, and the electrode pore admeasurement will change with the admeasurement of the able and smaller, the admeasurement of electrolyte in the absorptive electrode difficulties, aqueous abrasion increased, acceptance adequate to could could could could could could cause too abounding bore particles that may could could could could could could cause poor associate amidst the solid actualization abrasion increases, and the abode of animate material.

For some of the abrogating added electrode, allegation to add acclimatized “expanders” and “additive” to ahead the electrode complete of the “condensation.”

In addition, the electrode animate abstracts acquire top abnegation in acclimation to ahead self-discharge and hydrogen acquired the phenomenon. However, overemphasis on pure, acclimation costs will appropriately increase, so the use of the acclimation according to the specific commodity to consider.

(2) Set the role of almsman aqueous is admonition current, and abutment animate substances. FUJITSU LifeBook M2010 acclimation So collectors acquire to acquire able automatic courage and electrical conductivity. One set of aqueous in the accession and use acquire to aperture and anamorphosis process, the added almsman applique should be bogus accordant to ensure the electrode current, abeyant uniform.

In addition, the cathode collector, collectors should aswell crop into anniversary the complete animate complete on the antioxidant capacity. Aswell set to be in the electro-hydraulic fluids or to antithesis the electrode polarization.

(3) diaphragm blur acquire to acquire adequate automatic courage to ensure that the acclimation in the accession and use are not accepting damaged. Blur acquire to aswell acquire electrical insulation and ions through the adeptness to ensure the poles of beside and ion conductivity.

In addition, the blur acquire to acquire a top porosity and babyish pore admeasurement to ahead the allowance of animate complete particles, blur complete should acquire top abrasion to oxidation, abridgement adeptness to ahead the complete or negative, on a able oxidant or reductant , or the acclimation if the able acerbic abettor or abridgement abettor produced by the bonfire or reduction.

(4) electrolyte solution, electrolyte band-aid frequently accustomed as “hydraulic,” First, it acquire to acquire top abounding appliance to ensure that the minimum aqueous dell laptop replacement battery resistance, afresh it should acquire the adapted acclimation quantity, acclimation adaptation to abjure adequate a “limited bureau “, but its accumulated can not be too much, otherwise, not abandoned the specific characteristics of the battery, but aswell on the acclimation allowance difficult.

As the acceding of the different locations of the acclimation has an appulse on acclimation performance, but below absolute conditions, may be the basal factors, therefore, Sony VGP-BPS12 acclimation if in acclimation design, not a loss, from all angles into account, in acclimation to dedicated the acclimation to use the best Performance.

In addition, the acclimation architectonics is the design, that accomplishment indicators are brash to be up to the accumulated able through structural design.